Prof. Dr. Michael Knorz

 Medline Übersicht / PubMed Overview

Presbyopiekorrektur mittels Laserchirurgie
Knorz M.
Augenheilkunde up2date 2025; 15: 249–265

Evaluation and quality assurance of refractive surgical interventions by the DOG and the BVA-Recommendations of the Committee of Refractive Surgery: Status June 2022
 Ophthalmologie. 2023 Jun;120(6):633-644. doi: 10.1007/s00347-022-01758-5. Epub 2023 Mar 29. PMID: 36988656 

Factors leading to realignment or exchange after implantable collamer lens implantation in 10 258 eyes.
Wei R, Li M, Aruma A, Knorz MC, Yang D, Yu Y, Wang X, Choi J, Yao P, Zhou X.
J Cataract Refract Surg . 2022 Oct 1;48(10):1190-1196. doi: 10.1097/j.jcrs.0000000000000950. PMID: 35351844 

 Visualization of Forward Light Scatter in Opacified Intraocular Lenses and Straylight Assessment
Son, H.-S.; Łabuz, G.; Khoramnia, R.; Yildirim, T.M.; Choi, C.Y.; Knorz, M.C.; Auffarth, G.U.
Diagnostics 2021, 11, 1512. https://doi.org/ 10.3390/diagnostics11081512

 Corneal Incision Enlargement in Two Preloaded Intraocular Lens Injectors: An Intraindividual In Vivo Study
Timur M Yildirim, Grzegorz Łabuz, Isabella D Baur, Piyanut Poompokawat, Michael C Knorz, Gerd U Auffarth, Ramin Khoramnia
 J Refract Surg. 2021; 37(5): 331-336. doi: 10.3928/1081597X-20210204-01

 Trifocality Achieved Through Polypseudophakia: Optical Quality and Light Loss Compared With a Single Trifocal Intraocular Lens
Grzegorz Łabuz, Gerd U. Auffarth, Michael C. Knorz, Hyeck-Soo Son, Timur M. Yildirim, Ramin Khoramnia
 J Refract Surg. 2020; 36(9):570-577. doi: 10.3928/1081597X-20200715-01

 Intraocular pressure changes and corneal biomechanics after hyperopic small-incision lenticule extraction.
 Fu D, Li M, Knorz MC, Wei S, Shang J, Zhou X.
 BMC Ophthalmol. 2020 Apr 5;20(1):129. doi: 10.1186/s12886-020-01384-2

 Semi-fluorinated Alkane Eye Drops Reduce Signs and Symptoms of Evaporative Dry Eye Disease After Cataract Surgery.
 Son HS, Yildirim TM, Khoramnia R, Poompokawat P, Knorz MC, Auffarth GU.
 J Refract Surg. 2020 Jul 1;36(7):474-480. doi: 10.3928/1081597X-20200519-01.

 Comparison Between Bilateral Implantation of a Trifocal IOL and Mix-and-Match Implantation of a Bifocal IOL and an Extended Depth of Focus IOL
Ji Eun Song, Ramin Khoramnia, Hyeck-Soo Son, Michael C Knorz, Chul Young Choi
 J Refract Surg. 2020 Aug 1;36(8):528-535. doi: 10.3928/1081597X-20200616-01

 Three-Step Treatment of Keratoconus and Post-LASIK Ectasia: Implantation of ICRS, Corneal Cross-linking, and Implantation of Toric Posterior Chamber Phakic IOLs.
 He C, Joergensen JS, Knorz MC, McKay KN, Zhang F.
 J Refract Surg. 2020 Feb 1;36(2):104-109. doi: 10.3928/1081597X-20191217-01.

 Impact of Primary Calcification in Segmented Refractive Bifocal Intraocular Lenses on Optical Performance Including Straylight.
 Yildirim TM, Labuz G, Khoramnia R, Son HS, Schickhardt SK, Lieberwirth I, Knorz MC, Auffarth GU.
 J Refract Surg. 2020 Jan 1;36(1):20-27. doi: 10.3928/1081597X-20191119-01.

 [Presbyopia Correction with Intraocular Lenses].
 Knorz MC.
 Klin Monbl Augenheilkd. 2020 Feb;237(2):213-223. doi: 10.1055/a-1023-9859. Epub 2019 Nov 19. German.

 Comparison of Color Light-Emitting Diode Corneal Topographer and Dual Rotating Scheimpflug-Placido Topographer.
Lee JH, Lee YW, Lee JS, Knorz MC, Auffarth GU, Choi CY.
 J Ophthalmol. 2018 Dec 27;2018:6764805. doi: 10.1155/2018/6764805. eCollection 2018.

 Preoperative refraction, age and optical zone as predictors of optical and visual quality after advanced surface ablation in patients with high myopia: a cross-sectional study.
Zhou J, Xu Y, Li M, Knorz MC, Zhou X.
 BMJ Open. 2018 Jun 4;8(6):e023877. doi: 10.1136/bmjopen-2018-023877.

 Treatment of Corneal Ectasia by Implantation of an Allogenic Corneal Lenticule.
Li M, Zhao F, Li M, Knorz MC, Zhou X.
 J Refract Surg. 2018 May 1;34(5):347-350. doi: 10.3928/1081597X-20180323-01.

Laboratory Evaluation of the Influence of Decentration and Pupil Size on the Optical Performance of a Monofocal, Bifocal, and Trifocal Intraocular Lens.
 Tandogan T, Son HS, Choi CY, Knorz MC, Auffarth GU, Khoramnia R.
 J Refract Surg. 2017 Dec 1;33(12):808-812.

Three-Year Stability of Posterior Corneal Elevation After Small Incision Lenticule Extraction (SMILE) for Moderate and High Myopia.
 Zhao Y, Jian W, Chen Y, Knorz MC, Zhou X.
 J Refract Surg. 2017 Feb 1;33(2):84-88.

Change in Anterior and Posterior Curvature After Cataract Surgery
Yang Jae Kim, Michael C. Knorz, Gerd U. Auffarth, Chul Young Choi
 J Refract Surg. 2016 Nov;32(11): 754-759

Posterior Corneal Elevation after Small Incision Lenticule Extraction for Moderate and High Myopia
 Yu Zhao, Meiyan Li, Jing Zhao, Michael C. Knorz, Ling Sun, Mi Tian, Xingtao Zhou
 PLoS One. 2016; 11(2): e0148370. Published online 2016 Feb 10. doi: 10.1371/journal.pone.0148370

Bewertung und Qualitätssicherung refraktiv-chirurgischer Eingriffe durch die Deutsche Ophthalmologische Gesellschaft und den Berufsverband der Augenärzte Deutschlands (Stand: Januar 2014).
Kohnen T, Neuhann T, Knorz MC.
Klin Monbl Augenheilkd. 2015 Feb 16. [Epub ahead of print]
 Klin Monbl Augenheilkd. 2014 Jun;231(6):642-50.

Development of the continuous curvilinear lenticulerrhexis technique for small incision lenticule extraction.
Zhao Y, Li M, Yao P, Shah R, Knorz MC, Zhou X.
 J Refract Surg. 2015 Jan;31(1):16-21.

The use of femtosecond lasers in cataract surgery: review of the published results with the LenSx system.
Nagy ZZ, Mastropasqua L, Knorz MC.
 J Refract Surg. 2014 Nov;30(11):730-40.

Evaluation of femtosecond laser-assisted and manual clear corneal incisions and their effect on surgically induced astigmatism and higher-order aberrations.
Nagy ZZ, Dunai A, Kránitz K, Takács AI, Sándor GL, Hécz R, Knorz MC.
 J Refract Surg. 2014 Aug;30(8):522-5.

 Comparison of corneal deformation parameters after SMILE, LASEK, and femtosecond laser-assisted LASIK. 
Shen Y, Chen Z, Knorz MC, Li M, Zhao J, Zhou X.
 J Refract Surg. 2014 May;30(5):310-8.

The effect of femtosecond laser capsulotomy on the development of posterior capsule opacification.
Kovács I, Kránitz K, Sándor GL, Knorz MC, Donnenfeld ED, Nuijts RM, Nagy ZZ.
 J Refract Surg. 2014 Mar;30(3):154-8.

Comparison of corneal sensation between small incision lenticule extraction (SMILE) and femtosecond laser-assisted LASIK for myopia.
Li M, Zhou Z, Shen Y, Knorz MC, Gong L, Zhou X.
 J Refract Surg. 2014 Feb;30(2):94-100.

[Assessment and quality assurance of refractive surgical interventions by the DOG (German Society of Ophthalmology) and the BVA (Professional Association of German Ophthalmologists): Update January 2014].
Kohnen T, Neuhann T, Knorz MC.
 Ophthalmologe. 2014 Apr;111(4):320-9.

Influence of co-payment levels on patient and surgeon acceptance of advanced technology intraocular lenses.
Carones F, Knorz MC, Jackson D, Samiian A.
 J Refract Surg. 2014 Apr;30(4):278-81.

Subjective outcomes after bilateral implantation of an apodized diffractive +3.0 D multifocal toric IOL in a prospective clinical study.
Knorz MC, Rincón JL, Suarez E, Alfonso JF, Fernández-Vega L, Titke C, Kohnen T, Tucker S.
 J Refract Surg. 2013 Nov;29(11):762-7.

Removability of a small aperture intracorneal inlay for presbyopia correction.
Alió JL, Abbouda A, Huseynli S, Knorz MC, Homs ME, Durrie DS.
 J Refract Surg. 2013 Aug;29(8):550-6.

[Current state of refractive surgery of the cornea and lens].
Knorz MC.
 Ophthalmologe. 2013 Jul;110(7):683-95.

Anterior Segment OCT Imaging After Femtosecond Laser Cataract Surgery. — full article
 Nagy ZZ, Filkorn T, Takács AI, Kránitz K, Juhasz T, Donnenfeld E, Knorz MC, Alio JL.
Journal of Refractive Surgery, 2013 Feb;29(2):110-2.

Laser refractive cataract surgery with a femtosecond laser after penetrating keratoplasty: case report.
Nagy ZZ, Takács AI, Filkorn T, Juhász E, Sándor G, Szigeti A, Knorz MC.
Journal of Refractive Surgery, 2013 Jan;29(1):8.

Refractive surgical problem: November consultation.
Maloney RK, Malyugin B, Knorz MC, Masket S, Fram NR.
Journal of Refractive Surgery, 2012 Nov;38(11):2055-7.

Comparison of Long-term Visual Outcome and IOL Position With a Single-optic Accommodating IOL After 5.5- or 6.0-mm Femtosecond Laser Capsulotomy — full article
Szigeti A, Kránitz K, Takacs A, Miháltz K, Knorz MC; Nagy ZZ
Journal of Refractive Surgery, 2012; 28(9): 609-613

Corneal changes in progressive keratoconus after cross-linking assessed by Scheimpflug camera.
Kránitz K, Kovács I, Miháltz K, Sándor GL, Knorz MC, Németh J, Nagy ZZ.
Journal of Refractive Surgery, 2012 Sep;28(9):645-9.

Comparison of IOL Power Calculation and Refractive Outcome After Laser Refractive Cataract Surgery With a Femtosecond Laser Versus Conventional Phacoemulsification — full article
 Filkorn T, Kovács I, Takács A, Horváth E, Knorz MC, Nagy ZZ
Journal of Refractive Surgery, 2012; 28(8) : 540-544

Visual acuity improvements after implantation of toric intraocular lenses in cataract patients with astigmatism: a systematic review.
Agresta B, Knorz MC, Donatti C, Jackson D.
BMC Ophthalmol. 2012 Aug 15;12:41.

Central Corneal Volume and Endothelial Cell Count Following Femtosecond Laser-assisted Refractive Cataract Surgery Compared to Conventional Phacoemulsification — full article
 Takács AI, Kovács I, Miháltz K, Filkorn T, Knorz MC, Nagy ZZ
Journal of Refractive Surgery, 2012; 28(6): 387-391

Distance and near visual acuity improvement after implantation of multifocal intraocular lenses in cataract patients with presbyopia: a systematic review. — full article
Agresta B, Knorz MC, Kohnen T, Donatti C, Jackson D.
Journal of Refractive Surgery, 2012 Jun;28(6):426-35.

Intraocular Lens Tilt and Decentration Measured By Scheimpflug Camera Following Manual or Femtosecond Laser-created Continuous Circular Capsulotomy
 Kránitz K, Miháltz K, Sándor G, Takacs A, Knorz MC; Nagy ZZ
Journal of Refractive Surgery, 2012; 28(4): 259-263

Intrastromal Femtosecond Laser Presbyopia Correction: 1-year Results of a Multicenter Study — full article
Holzer MP, Knorz MC, Tomalla M, Neuhann TM, Auffarth GU
Journal of Refractive Surgery, 2012;28(3):182-188

Intraocular Femtosecond Laser Use in Traumatic Cataracts Following Penetrating and Blunt Trauma — full article
Nagy ZZ, Kránitz K, Takacs A, Filkorn T, Gergely R, Knorz MC 
Journal of Refractive Surgery, 2012; 28(2): 151-153

Internal aberrations and optical quality after femtosecond laser anterior capsulotomy in cataract surgery. —   [full article]
Miháltz K, Knorz MC, Alió JL, Takács AI, Kránitz K, Kovács I, Nagy ZZ.
Journal of Refractive Surgery,  2011;27(10):711-6.

Femtosecond laser capsulotomy and manual continuous curvilinear capsulorrhexis parameters and their effects on intraocular lens centration
— [full article] —   [abstract]
Kránitz K, Takacs A, Miháltz K, Kovács I, Knorz MC, Nagy ZZ.
Journal of Refractive Surgery, 2011;27(8):558-63

Comparison of intraocular lens decentration parameters after femtosecond and manual capsulotomies  —   [full article] —   [abstract]
Nagy ZZ, Kránitz K, Takacs AI, Miháltz K, Kovács I, Knorz MC.
Journal of Refractive Surgery, 2011;27(8):564-

Angle-supported phakic intraocular lens for correction of moderate to high myopia: Three-year interim results in international multicenter studies — full article
Knorz MC, Lane SS, Holland SP.
Journal of Refractive Surgery, 2011;37(3):469-80 

Hydrogel intracorneal inlays for the correction of hyperopia: outcomes and complications after 5 years of follow-up. — Full article
Mulet ME, Alio JL, Knorz MC.
 Ophthalmology. 2009 Aug;116(8):1455-60, 1460.e1.

AcrySof phakic angle-supported intraocular lens for the correction of moderate-to-high myopia: one-year results of a multicenter European study. — full article
Kohnen T, Knorz MC, Cochener B, Gerl RH, Arné JL, Colin J, Alió JL, Bellucci R, Marinho A.
Ophthalmology. 2009;116(7):1314-21, 1321.e1-3. 

Thin-Flap LASIK: How thin should we go?
Knorz MC
Cataract & Refractive Surgery Today Europe, Oktober 2008, 1 - 2 

Comparison of flap adhesion strength using the Amadeus microkeratome and the IntraLase iFS femtosecond laser in rabbits — Online Abstract
Michael C. Knorz, MD; Urs Vossmerbaeumer, MD
Journal of Refractive Surgery, 2008;24(9):875-8

Comparison of flap adhesion strength using the Amadeus microkeratome and the IntraLase iFS femtosecond laser in rabbits — Online Abstract
Knorz MC; Urs Vossmerbaeumer, MD
Journal of Refractive Surgery, 2008;24(9):875-8.

Thin-Flap LASIK: How thin should we go?
Michael C. Knorz, MD
Cataract & Refractive Surgery Today Europe, Oktober 2008, 1 - 2 

Multifocal intraocular lenses: Overview of their capabilities, limitations, and clinical benefits  —   [full article]
Michael C. Knorz, MD (Senior Associate Editor)
Journal of Refractive Surgery, Volume 24, March 2008, 215 - 217

Wavefront-guided excimer laser vision correction after multifocal IOL implantation  —   [full article]
Bettina B. Jendritza, MD; Michael C. Knorz, MD; Steve Morton
Journal of Refractive Surgery, Volume 24, March 2008, 274 - 279

[Evaluation and quality assurance of refractive surgery procedures by the German Ophthalmological Society and the Professional Association of German Ophthalmologists].
Kohnen T, Knorz MC, Neuhann T; German Ophthalmological Society; Professional Association of German Ophthalmologists.
 Ophthalmologe. 2007;104(8):719-26.

Comparison of higher order aberrations and contrast sensitivity after LASIK, Verisyse phakic IOL, and Array multifocal IOL  —   [full article]
Chandhrasri S, Knorz MC.
J Refract Surg. 2006;22(3):231-6.

 [Complications of refractive excimer laser surgery].
Knorz MC.
 Ophthalmologe. 2006;103(3):192-8.

Recurrent interface infiltration with hypopyon after astigmatic laser in situ keratomileusis on a penetrating corneal graft
Thomas Reinhard, MD, Michael Knorz, MD, Rainer Sundmacher, MD, FRCOphth
Journal of Cataract and Refractive Surgery 2004; 30:257–258 

[Refractive benefit and incremental costs of LASIK: results of a cost benefit study in two universities' LASIK departments].
Krummenauer F, Roden M, Knorz MC, Dick HB.
 Klin Monbl Augenheilkd. 2003 May;220(5):320-5.

Flap and interface complications in LASIK.
Knorz MC.
 Curr Opin Ophthalmol. 2002 Aug;13(4):242-5.

Treatment of myopia and myopic astigmatism by customized laser in situ keratomileusis based on corneal topography.  —   [full article]
Michael C. Knorz, MD and Thomas Neuhann, MD
 Ophthalmology, Volume 107, Issue 11, November 2000, 2072 - 2076 

Cataract extraction with multifocal intraocular lens implantation: Clinical, functional, and quality-of-life outcomes. Multicenter clinical trial in Germany and Austria
Jonathan Javitt, MD, MPH, Hans-Peter Brauweiler, MD, Karl W. Jacobi, MD, Ulrich Klemen, MD, Stephan Kohnen, MD, Claus-Dieter Quentin, MD, Christian Teping, MD, Thoai Pham, MD, Michael C. Knorz, MD, Detleff Pötzsch, MD
Journal of Cataract and Refractive Surgery 2000; 26: 1356 - 1366

[Correction of myopia and astigmatism using topography-assisted laser in situ keratomileusis (TopoLink LASIK)].
Knorz MC, Neuhann T.
 Ophthalmologe. 2000;97(12):827-31.

Treatment of myopia and myopic astigmatism by customized laser in situ keratomileusis based on corneal topography. — full article
Knorz MC, Neuhann T.
Ophthalmology. 2000;107(11):2072-6.

Cataract extraction with multifocal intraocular lens implantation: clinical, functional, and quality-of-life outcomes. Multicenter clinical trial in Germany and Austria.
Javitt J, Brauweiler HP, Jacobi KW, Klemen U, Kohnen S, Quentin CD, Teping C, Pham T, Knorz MC, Pöetzsch D.
Journal of Cataract and Refractive Surgery, 2000;26(9):1356-66.

TopoLink LASIK.
Knorz MC.
 Int Ophthalmol Clin. 2000 Summer;40(3):145-9.

Topographically-guided laser in situ keratomileusis to treat corneal irregularities. — full article
Knorz MC, Jendritza B.
Ophthalmology, 2000;107(6):1138-43.

[Twilight visual acuity after correction of myopia with LASIK].
Knorz MC, Hugger P, Jendritza B, Liermann A.
Ophthalmologe. 1999;96(11):711-6. 

Laser-in-situ-Keratomileusis for moderate and high myopia and myopic astigmatism — Full article
Knorz MC, Wiesinger B, Liermann A., Seiberth V., Liesenhoff H.
 Ophthalmology, 1998; 105(5)

Derzeitiger Stand der refraktiven Chirurgie an Hornhaut und Linse.
 Knorz MC
In: Pfeiffer N, Cursiefen C, Holz FG (Hrsg)
Die Augenheilkunde - Das Referenzwerk. Springer 2025, Seite 1613-1638

Femtosecond Laser-assisted Cataract Surgery
Editor: Leonardo Mastropasqua
Authors: José F. Alfonso, Roberto Bellucci, Philippe Crozafon, Anastasios J. Kanellopoulos, Michael C. Knorz, Leonardo Mastropasqua, Zoltán Z. Nagy, Mario Nubile, Lisa Toto, Luis Fernández-Vega
 Ophthalmology Textbook, Continuing Medical Education, 2012

Hilfe, wenn die Sicht trüb wird! Brillenunabhängig durch AddOn-Linse 
Prof. Dr. Michael Knorz
 Augenlicht VisionCare, Ausgabe 3-2019

Mit Kunstlinsen zum Adlerblick? 
Mikrochirurgie und moderne Kunstlinsen helfen dabei
Prof. Dr. Michael Knorz
Beilage des Mannheimer Morgen „gesund leben“, 23. 9. 2019 

Individuelle Sehanforderungen des Patienten
Umfrage: „Welchen Patienten empfehlen Sie eine EDOF-IOL und welchen eine trifokale IOL?“
Prof. Dr. Michael Knorz
 OPHTHALMO-CHIRURGIE 31, 2019

Kapsulotomie – Was gibt es Neues?
Prof. Dr. Michael Knorz
 DGII Aktuell, September 2016

Ja, auch Augenärzte lassen sich lasern 
Interview mit Prof. Dr. Michael Knorz
Augenlicht, Sommer 2016

"Ein innovationsfreudiger Markt" - Interview mit DGII-Tagungspräsident Prof. Michael C. Knorz
DER AUGENSPIEGEL 51, 2/2016

LenSx Laser neu mit Flapfunktion – klinische Erfahrungen
Prof. Dr. Michael Knorz
 OPHTHALMO-CHIRURGIE 27 (SUPPL. 1): 3 – 4 (2015)

At the beginning of a new era:
How to manage the learning curve of laser refractive cataract surgery
Michael Knorz
 European Ophthalmology News, 10/2013

Presbyopiekorrektur mittels kornealer Inlays
Prof. Dr. Michael Knorz
DER AUGENSPIEGEL 06/2013: 30 - 31
Mit freundlicher Genehmigung des AUGENSPIEGELs 

Geschichte und neueste Entwicklungen des LenSx Lasers
Prof. Dr. Michael Knorz
 OPHTHALMO-CHIRURGIE 25 (Suppl . 3): 1 – 6 (2013)

The Best of 2012: Trends and Breakthroughs in Cataract and Refractive Surgery
Cover Story, Interview
Cataract & Refractive Surgery Today Europe, November/December 2012, 1 - 12

Toric Multifocal IOLs or Bioptics?
The Correction of Astigmatism in Cataract and Refractive Surgery
 World Ophthalmology News. February 2012: 11 - 12

Vorteile der Laser-Refraktiven Kataraktchirurgie
Erste Erfahrungen und Ausblick auf zukünftiges Potenzial - Eine Stellungnahme
Prof. Dr. Michael Knorz
DER AUGENSPIEGEL 02/2012: 24 - 25
Mit freundlicher Genehmigung des AUGENSPIEGELs 

Surgeons trained to use phacoemulsification will adopt laser cataract surgery, and the next generation of residents will start training using it.
Michael C. Knorz, MD
Cataract & Refractive Surgery Today Europe, February 2012, 2 - 4

Achieving Patient Satisfaction with Premium IOLs
Michael Knorz, MD
Cataract & Refractive Surgery Today Europe, January 2012, 59 - 60

Advanced Technology IOLs: Recommending the right IOL
Michael Knorz, MD, and others
 Ocular Surgery News Europe Edition, November 2011

Laser-Refraktive Kataraktchirurgie mit dem Alcon LenSx Femtosekundenlaser:
Vielversprechendes Verfahren
Prof. Dr. Michael Knorz
 DGII Aktuell, September 2011, Seite 3

Pearls for Success With Premium IOLs
One surgeon provides tips for smooth pre-, intra-, and postoperative processes.
 Michael Knorz, MD
Cataract & Refractive Surgery Today Europe, March 2011, 1 - 2

Panel Discussion: Refractive Correction Success (video)
- Patient expectations for LASIK results
- What does quality of vision mean from patients perspective?
William Trattler, MD, Michael Knorz, MD, and Julian Stevens, MD, Januar 2010

Korrektur von Restrefraktionen nach Kataraktchirurgie: Hornhautlaser oder Add-on-IOL?
Kommentar von Michael C. Knorz, OPHTHALMO-CHIRURGIE 22: 229 - 230 (2010) 
Mit freundlicher Genehmigung des Dr. Kaden Verlag

Newsmaker Interview... 20 Years of LASIK... Celebrating LASIK Surgery: Less Stress
Michael C. Knorz im Gespräch mit Roibeard O'hEineachain, Contributing Editor of EuroTimes
 EUROTIMES, Volume 15, Issue 6 - Juni 2010

Phakic lens' concerns, challenges and successes to be reviewed at ASCRS 
 ASCRS Symposium Congress Review by Rich Daly EyeWorld

Benefits of presbyopic IOLs come with some trade-offs
Interview with Michael Knorz, MD
 Ophthalmology Times, March 1, 2010

Surgeon shares new refractive technologies adopted in clinic: iLASIK and the AcrySof phakic IOL 
Michael C. Knorz, MD
OSN Super Site, 2009

Refraktive Chirurgie: Augenlaser gegen Sehschwäche
Interview mit Prof. Dr. Michael Knorz, Gesundheitsnews, 27. Oktober 2009 

5 Questions with Michael C. Knorz
Michael C. Knorz, MD
Cataract and Refractive Surgery Today, Februar 2009

Sichere Kontaktlinse im Auge gegen Kurzsichtigkeit von -6 bis -16 Dioptrien
Magazin Familie & Gesundheit, Januar/Februar 2009

Flap adhesion under the spotlight: Comparing femtosecond with microkeratome
Ophthalmology Times Europe, February 2009, Vol 5 (1) 

Newsmaker Interview... Michael Knorz - The changing face of laser refractive surgery
Eurotimes, July/August 2008

LASIK und NASA: Femto-LASIK erstmals für Astronauten zugelassen
Prof. Dr. Michael C. Knorz
 Augenspiegel, 06/2008, 30 - 32

Refractive surgeons review surface ablation - pros, cons, and alternate solutions
Michael C. Knorz, MD
 Eurotimes, February 2008

IOL Options in 2008 – Roundtable of opinion leaders
with Michael C. Knorz, MD
Cataract & Refractive Surgery Today Europe, January 2008, 1 - 16

Phakosimulation – wo stehen wir heute? Erfahrungen mit dem Eyesi Simulator
M. C. Knorz
 OPHTHALMO-CHIRURGIE 20: 208 - 210 (2008)
Mit freundlicher Genehmigung des Dr. Kaden Verlag

European perspective on mixing and matching multifocal IOLs: Surgeons in Europe have more lenses from which to choose
Michael C. Knorz, MD
Cataract & Refractive Surgery Today Europe, August 2007, 1 - 3

Partnering multifocal IOLs with LASIK to achieve perfect vision – Eradicating residual ammetropia with the bioptics combination   |   PDF
Michael C. Knorz, MD
 Ophthalmology Times Europe, Volume 3, Issue 8, October 2007, 2 - 4 

Sind intrakorneale Implantate "out"?
Interview mit Prof. Dr. M. C. Knorz
 OPHTHALMO-CHIRURGIE 19: 319 - 320 (2007)

Phakic IOLs: When things go wrong: Experience of managing complications and recommendations
   |   PDF
Michael C. Knorz, MD
 Ophthalmology Times Europe, Volume 3, Issue 2, March 2007

RLE with wavefront-guided LASIK
Michael C. Knorz, MD
 Eurotimes, March 2007

Intracorneal implants may see a limited renaissance 
Michael C. Knorz, MD
 Eurotimes, February 2004

PreLex on top in bid to offer 'new quality of vision' to patients with presbyopia 
Roibeard Ó' hÉineacháin
 Eurotimes, February 2003

Laser-refraktive Kataraktoperation mit dem LensX Femtosekundenlaser
Michael C. Knorz, 2013 (während der DOC)

Laser Refractive Lens Surgery using an Intraocular Femtosecond Laser
Michael C. Knorz, MD

Alcon Acrysof Phakic IOL
Michael C. Knorz, MD, recorded for Video Journal of Ophthalmology

iLASIK using the IntraLase iFS and Visx START S4
Michael C. Knorz, MD, recorded at the ESCRS Meeting 2008

iLASIK after Implantation of a Tecnis Multifocal IOL 
Michael C. Knorz, MD, sponsored by Abbot Medical Optics, 2009

iLASIK with 5th Generation Intralase iFS Laser
Michael C. Knorz, MD, 2009

First Clinical Results with the iFS Femtosecond Laser
Michael C. Knorz, MD, 2009

Femtosecond Laser LASIK with the AMO FS 60 Femtosecond Laser
Michael C. Knorz, MD

Implantation der Acrysof Cachet Phakic IOL (Alcon) mit bimanueller Irrigation und Aspiration
Implantation of a Acrysof Cachet Phakic IOL (Alcon) using bimanual irrigation and aspiration
— alternative Version
Michael C. Knorz, MD

Implantation der Acrysof Cachet Phakic IOL mit passiver Irrigation
Implantation of a Acrysof Cachet Phakic IOL (Alcon) using passive irrigation
— alternative Version
Michael C. Knorz, MD

RayOne Galaxy Spiral IOPast L Data - a new Full Range of Vision IOL
Michael C. Knorz
 37. Annual Meeting of the Asia-Pacific Association of Cataract and Refractive Surgeons (APACRS), Ahmedabad, India, 21.-23.8.2025

MasterClass: Different Brands of Implantable Contact Lens, Their Pro´s and Con´s for Each
Michael C. Knorz
 37. Annual Meeting of the Asia-Pacific Association of Cataract and Refractive Surgeons (APACRS), Ahmedabad, India, 21.-23.8.2025

Incidence of Retinal Detachment After Refractive Lens Exchange
Michael C. Knorz
 37. Annual Meeting of the Asia-Pacific Association of Cataract and Refractive Surgeons (APACRS), Ahmedabad, India, 21.-23.8.2025

Barrett/Wolfe Lecture: Past, Presence and Future of Presbyopia-Correcting IOLs
Michael C. Knorz
2025 Annual 2025 Meeting of the The Australasian Society of Cataract and Refractive Surgeons, 16. - 19. July, Darwin, Australia

Refractive Lens Exchange combined with Explantation of an Artisan Phakic IOL with Self-Sealing Incision (Video)
Michael C. Knorz
 Annual Meeting of the Austral-Asian Society of Cataract and Refractive Surgeons (AUSCRS), Darwin, Australia, 17.-19.7.2025

The Rayner Galaxy Lens: Outcomes
Michael C. Knorz
First Joint Conference on Presbyopia Treatment, 6. July 2025, London, UK

Multifokallinsen nach Refraktiver Chirurgie
Michael C. Knorz
 37. Internationaler Kongress der Deutschen Ophthalmochirurgie, 15. - 17. Mai 2025, Nürnberg

EyeDura: a drop that lasts a week!
Michael C. Knorz
 37. Internationaler Kongress der Deutschen Ophthalmochirurgie, 15. - 17. Mai 2025, Nürnberg

Trifocal IOLs after LASIK
Michael C. Knorz
 Annual Meeting of the Austral-Asian Society of Cataract and Refractive Surgeons (AUSCRS), Hamilton Island, Australia, 25.-27.7.2024

Implantation of Trifocl IOLs in Post-LASIK Patients
Michael C. Knorz
 36. Annual Meeting of the Asia-Pacific Association of Cataract and Refractive Surgeons (APACRS), Chendgu, China, 30.5. - 1.6.2024

Refractive Lens Exchange with Trifocal IOL should be Standard of Care for all Hyperopes over 30 Years
Michael C. Knorz
 35. Annual Meeting of the Asia-Pacific Association of Cataract and Refractive Surgeons (APACRS), Singapore, 8.-10.6.2023

The Moderate Myope: SMILE, LASIK, PRK, or Phakic IOLs?
Michael C. Knorz
 35. Annual Meeting of the Asia-Pacific Association of Cataract and Refractive Surgeons (APACRS), Singapore, 8.-10.6.2023

TECNIS Synergy® IOL- Kontinuierliches Sehen von nah bis fern (Online Presentation)
Michael C. Knorz
 35. Kongress der DGII 2021, 25. - 27. February 2021

Fs-LASIK, PRK - Gegenwart und Zukunft (Online Presentation)
Michael C. Knorz
 35. Kongress der DGII 2021, 25. - 27. Februar 2021

IIIC Medal Lecture 2016: Personal History of Multifocal IOLs
Michael C. Knorz
 Annual Meeting of the International Intra-Ocular Implant Club, 11. September 2016, Kopenhagen, Dänemark

Long-term data on phakic IOLs
Michael C. Knorz
 ESCRS Congress 2013, Amsterdam/The Netherlands

How to manage the learning curve for laser-refractive cataract surgery
Michael C. Knorz
 ESCRS Congress 2013, Amsterdam/The Netherlands

Vor- und Nachteile der operativen Presbyopiekorrektur
 Michael C. Knorz
 111. DOG-Kongress, 19. - 22. September 2013, Berlin

Laser-refraktive Kataraktchirurgie mit dem Femtosekundenlaser - Ein Blick in die Zukunft
 Michael C. Knorz
 111. DOG-Kongress, 19. - 22. September 2013, Berlin

Advancements in Techniques and Technologies
Michael C. Knorz
 Live Surgery, April 20, 201, San Francisco, USA

Who are suitable for Lasik Operation? Preoperative diagnostic examinations for Lasik Surgery. Laser vision correction and quality of vision
Michael C. Knorz
 1st German Chinese International Refractive Surgery Symposium, May 11, 2013, Shanghia, China

Monovision, Acofocus and multifokal Lens Implantation in Europe
Michael C. Knorz
 1st German Chinese International Refractive Surgery Symposium, May 11, 2013, Shanghia, China

Controversy: Corneal laser treatment for presbyopia CONTRA
Michael C Knorz
 26. Congress der Deutschen Ophthalmochirurgen DOC 2013, Nürnberg

Controversy: Corneal laser treatment for presbyopia (Diskussion)
Michael C Knorz
 26. Congress der Deutschen Ophthalmochirurgen DOC 2013, Nürnberg

Laser systems for lens surgery - what is new, what can we expect?
Michael C Knorz
 26. Congress der Deutschen Ophthalmochirurgen DOC 2013, Nürnberg

Update Lasersysteme für die Kataraktchirurgie - was gibt es, was kommt?
Michael C Knorz
 26. Congress der Deutschen Ophthalmochirurgen DOC 2013, Nürnberg

Möglichkeiten und Grenzen von intracornealen refraktiven Inlays
Michael C. Knorz
 27. Congress der DGII 2013, Heidelberg

Anterior chamber phakic IOLs
 Michael C. Knorz
Congress of the Asia-Pacific Academy of Ophthalmology, January 19, 2013, Hyderabad, India

Laser refractive cataract surgery - Overview of laser systems
Michael C. Knorz
Congress of the Asia-Pacific Academy of Ophthalmology, January 17, 2013, Hyderabad, India

Ectasia after INTRACOR
Michael C. Knorz
Congress of the Asia-Pacific Academy of Ophthalmology, January 19, 2013, Hyderabad, India

Vision After Bilateral Implantation of Diffractive Multifocal Toric IOLs
Michael C. Knorz
Congress of the Asia-Pacific Academy of Ophthalmology, January 18, 2013, Hyderabad, India

Multifocal IOLs - PRO
Michael C. Knorz
Congress of the Asia-Pacific Academy of Ophthalmology, January 17, 2013, Hyderabad, India

Corneal Ablations: What About Reversability?
Michael C Knorz
 AAO Annual Meeting 2012, November 2012, Chicago/USA

Which Patients Truly Benefit From Laser Refractive Lens Surgery?
Michael C Knorz
 AAO Annual Meeting 2012, November 2012, Chicago/USA

Presbyopia-Correction Corneal Shaping
Michael C Knorz
 AAO Annual Meeting 2012, November 2012, Chicago/USA

Vision and Spectacle Independence After Bilateral Implantation of +3D Diffractive Toric and Non-toric Multifocal IOLs
Michael C Knorz
 AAO Annual Meeting 2012, November 2012, Chicago/USA

Die Laser-Refraktive Kataraktchirurgie mit dem Femtosekundenlaser
Michael C. Knorz
 110. DOG-Kongress, 20. - 23. September 2012, Berlin

Presbyopiekorrektur mit intrakornealen Implantaten
Michael C. Knorz
 110. DOG-Kongress, 20. - 23. September 2012, Berlin

Correcting presbyopia in ametropic, emmetropic and monofocal pseudophakic patients with a corneal inlay
Michael C. Knorz
 ESCRS Congress 2012, Milan/Italy

Reading performance before and after bilateral implantation of an apodized diffractive multifocal toric intraocular lens
Michael C. Knorz
 ESCRS Congress 2012, Milan/Italy

Prospective evaluation of rotational stability of an anterior chamber phakic IOL using digital compensation of eye rotation
Michael C. Knorz
ESCRS Congress 2012, Milan/Italy

Non-optical complications of LASIK and corneal surgery
Michael C. Knorz
 ESCRS Congress 2012, Milan/Italy

Optical performance of an aspheric apodized diffractive multifocal IOL with a 2.5 D add power
Michael C. Knorz
 ESCRS Congress 2012, Milan/Italy

Die Laser-Refraktive Kataraktoperation
Michael C. Knorz
 26. Congress der DGII 2012, Berlin

Laser refractive cataract surgery - Overview of laser systems
Michael C. Knorz
World Ophthalmology Congress, February 20, 2012, Abu Dhabi

Posterior chamber phakic iols are my last choice!
Michael C. Knorz
 World Ophthalmology Congress, February 17, 2012, Abu Dhabi

Laser refractive cataract surgery
Michael C. Knorz
World Ophthalmology Congress, February 16, 2012, Abu Dhabi

Toric multifocal IOLs or bioptics?
Michael C. Knorz
World Ophthalmology Congress, February 16, 2012, Abu Dhabi

Reduction in Mean Cumulative Dissipated Energy Following Lens Liquefaction With an Intraocular Femtosecond Laser
Michael C Knorz
 AAO Annual Meeting 2011, October 2011, Orlando/USA

Laser refractive lens surgery: The new paradigm
Michael C. Knorz
 Key Note Lecture, AAO Annual Meeting, Refractive Surgery Subspecialty Day, October 22, 2011, Orlando/USA

Posterior chamber phakic iols are my last choice!
Michael C. Knorz
 Panel Discussion, AAO Annual Meeting, Refractive Surgery Subspecialty Day, October 22, 2011, Orlando/Florida

Die Laser-Refraktive Kataraktchirurgie mit dem Femtosekundenlaser
Michael C. Knorz
 109. DOG-Kongress, 29.9.-2.10.2011, Berlin

Presbyopiekorrektur mit intrakornealen Implantaten
Michael C. Knorz
 109. DOG-Kongress, 29.9.-2.10.2011, Berlin

Anterior chamber phakic IOLs
Michael C. Knorz
 ESCRS Congress 2011, Vienna/Austria

Laser refractive cataract surgery
 Michael C. Knorz
 ESCRS Congress 2011, Vienna/Austria

Binocular visual acuity outcomes with apodized diffractive multifocal toric intraocular lens
 Michael C. Knorz
 ESCRS Congress 2011, Vienna/Austria

Reduction in mean cumulative dissipated energy (CDE) following lens fragmentation with an intraocular femtosecond laser
 Michael C. Knorz
 ESCRS Congress 2011, Vienna/Austria

Alcon's AcrySof IQ ReSTOR Multifocal Toric IOL
 Michael C. Knorz
 ESCRS Congress 2011, Vienna/Austria

Phakic IOL-Iris Supported/ Angle Supported Phakic IOL Is the Best
Michael C Knorz
 AAO Annual Meeting 2010, October 2010, Chicago/USA

All-Laser LASIK Results with the iLASIK Procedure
Michael C. Knorz
 ESCRS Congress 2010, September 4-8, 2010, Paris/France

Laser Cataract Surgery Using an Intraocular Femtosecond Laser
Michael C. Knorz
 ESCRS Congress 2010, September 4-8, 2010, Paris/France

2020 in 2010 - The 20th Anniversary of LASIK
Michael C. Knorz
Vortrag zur Eröffnung der Jubiläumssitzung "20 Years of LASIK"
 ESCRS Congress 2010, September 4-8, 2010, Paris/France

12-months evaluation of the intrastromal femtosecond treatment of presbyopia
Michael C. Knorz
 ESCRS Congress 2010, September 4-8, 2010, Paris/France

Safety outcomes of the AcrySof Cachet Phakic investigational lens in prospective, global trials
Michael C. Knorz
 ESCRS Congress 2010, September 4-8, 2010, Paris/France

Choosing the Best Ablation Platform
Michael C. Knorz
 ESCRS Congress 2010, September 4-8, 2010, Paris/France

Part 2: Non-optical complications of LASIK and corneal surgery
Michael C. Knorz
 ESCRS Congress 2010, September 4-8, 2010, Paris/France

Managing Astigmatism and Residual Ametropia in Monofocal and Multifocal Pseudophakes
Michael C. Knorz
 World Ophthalmology Congress WOC 2010, June 5- 9, 2010, Berlin/Germany

Laser Cataract Surgery: Nucleus Liquefaction Using the Lensx Intraocular Femtosecond Laser
Michael C. Knorz; Zoltan Nagy
 World Ophthalmology Congress WOC 2010, June 5- 9, 2010, Berlin/Germany

Customized Ablation: Wavefront – Guided or Aspheric?
Michael C. Knorz; Zoltan Nagy
 World Ophthalmology Congress WOC 2010, June 5- 9, 2010, Berlin/Germany

European Clinical Experience with Phakic Angle-Supported IOL: Four-Year Postop [online version]
Michael C. Knorz
 ASCRS Symposium on Cataract, IOL and Refractive Surgery, April 9-14, 2010, Boston

Current Status of Phakic IOLs
Michael C. Knorz (invited speaker)
 Aspen Invitational Refractive Symposium, March 7-10, 2010, Aspen

Long-term results with phakic IOLs
Michael C. Knorz
 Hawaiian Eye 2010, January 17 – 22, 2010, Kauai

Primary posterior capsulotomy: A feasible way to prevent PCO?
Michael C. Knorz
 Hawaiian Eye 2010, January 17 – 22, 2010, Kauai

The AcrySof cachet phakic IOL: Results of the European Multicenter Study
Michael C. Knorz
 Annual meeting of the Netherlands Intra Ocular Implant Club, December 12, 2009, Utrecht/Netherlands

Novel Presbyopic IOLs
Michael C Knorz
 AAO Annual Meeting 2009, October 2009, San Francisco/USA

The AcrySof phakic IOL for moderate to high myopia in a European clinical investigation
Michael C. Knorz
 ESCRS Congress 2009, Barcelona/Spain

Wavefront-guided laser enhacement after implantation of multifocal lenses
Michael C. Knorz
 ESCRS Congress 2009, Barcelona/Spain

Non-optical complications of LASIK and corneal surgery
Michael C. Knorz
 ESCRS Congress 2008, Berlin/Germany

LASIK: Protagonist
Michael C. Knorz
 ESCRS Congress 2008, Berlin/Germany

Two year outcomes of the angle-supported AcrySof® phakic IOL in a European clinical trial
Michael C. Knorz
 ESCRS Congress 2008, Berlin/Germany

Endothelial cell density and morphology following implantation of the Acrysof angle-supported phakic IOL
— 2008 "Best Poster" Award
Michael C. Knorz
 Annual Meeting of the American Academy of Ophthalmology, November 8-11, 2008, Atlana/Georgia

Presbyopie-Korrektur mit dem AcuFocus ACI 7000™ cornealen Implantat (B)
Michael C Knorz
 21. Congress der Deutschen Ophthalmochirurgen DOC 2008, Nürnberg

Comparison of flap adhesion with a femtosecond laser and mechanical microkeratome in rabbit eyes
— 2008 "Best Paper of Session" Award
Michael C. Knorz
 ASCRS Symposium on Cataract, IOL and Refractive Surgery, April 2008, Chicago/Illinois

Cons of Surface Ablation
Michael C Knorz
 AAO Annual Meeting 2007, October 2007, New Orleans/USA

Prospective Multicenter Masked Comparison of the Tecnis Multifocal and AcrySof ReSTOR Multifocal IOL
Michael C Knorz
 AAO Annual Meeting 2007, October 2007, New Orleans/USA

Bioptics in treatment and management of hyperopic astigmatism
Michael C. Knorz
 ESCRS Congress 2007, Stockholm/Sweden

Results with the AcrySof® angle-supported phakic refractive IOL in an European multicenter clinical investigation
Michael C. Knorz
 ESCRS Congress 2007, Stockholm/Sweden

LASIK: Protagonist
Michael C. Knorz
 ESCRS Congress 2007, Stockholm/Sweden

Biomedical stability and outcomes: 90µm versus 120µm femtosecond laser-created flaps
— 2007 "Best Paper of Session" Award
Michael C. Knorz
 ASCRS Symposium on Cataract, IOL and Refractive Surgery, April 27-May 2, 2007, San Diego/California

Wellenfrontgeführte LASIK nach Multifokallinsenimplantation– die Zukunft des refraktiven Linsenaustausches
Michael C Knorz
 20. Congress der Deutschen Ophthalmochirurgen DOC 2007, Nürnberg

Wavefront-Driven Bioptics With Multifocal IOLs Using the IntraLase Laser
Michael C Knorz
 AAO Annual Meeting 2006, October 2006, Las Vegas/USA

AcrySof Angle-Supported Foldable Phakic IOL for the Correction of High Myopia
Michael C Knorz
 AAO Annual Meeting 2006, October 2006, Las Vegas/USA

Initial Experience With a 60kHz Femtosecond Laser for LASIK Flap Creation
Michael C Knorz
 AAO Annual Meeting 2006, October 2006, Las Vegas/USA

Phako-Training am Simulator - wie gut funktioniert das?
Michael C Knorz
 19. Congress der Deutschen Ophthalmochirurgen DOC 2006, Nürnberg

The dark side of the moon: Complications of refractive surgery
Anterior segment complications of laser surgery
Michael C Knorz
19. Congress der Deutschen Ophthalmochirurgen DOC 2006, Nürnberg

High-Quality Vision After ReZoom Multifocal IOL Implantation
Michael C Knorz
 AAO Annual Meeting 2005, October 2005, Chicago/USA

Blade versus Femtosekundenlaser - der ideale LASIK-Schnitt - Contra
Michael C Knorz
 18. Congress der Deutschen Ophthalmochirurgen DOC 2005, Nürnberg

Intracorneale Linsen - Wie weit ist das?
Michael C Knorz
 18. Congress der Deutschen Ophthalmochirurgen DOC 2005, Nürnberg

Femto-LASIK: Alternative nach Schnittkomplikationen
Michael C Knorz
 18. Congress der Deutschen Ophthalmochirurgen DOC 2005, Nürnberg

Corneal Stromal Implants
Michael C Knorz
 AAO Annual Meeting 2004, October 2004, New Orleans/USA

Topography Guided vs Wavefront Guided
Michael C Knorz
 AAO Annual Meeting 2003, November 2003, Anaheim/USA

Experience with the Alcon Angle Supported Lens
Michael C Knorz
 AAO Annual Meeting 2003, November 2003, Anaheim/USA

Long-Term Results with the Artisan Iris-Claw IOL in Myopia
Michael C Knorz
 AAO Annual Meeting 2003, November 2003, Anaheim/USA

Wavefront Technology for Corneal Corrections
Michael C Knorz
 AAO Annual Meeting 2003, November 2003, Anaheim/USA

Online Optical Coherence Pachymetry During LASIK
Michael C Knorz
 AAO Annual Meeting 2003, November 2003, Anaheim/USA

Results of the Multicenter Study of Zyoptix Wavefront-Guided LASIK
— 2002 "Best Paper of Session" Award
Michael C Knorz
 ASCRS Symposium on Cataract, IOL and Refractive Surgery, June 1-5, 2002, Philadelphia/USA

Undersurface Ablation of the Flap (UAF) for LASIK Re-treatment
Michael C Knorz
 AAO Annual Meeting 2001, November 2001, New Orleans/USA

Panel Discussion: Refractive Lasers and Abberometers
Michael C Knorz
 AAO Annual Meeting 2001, November 2001, New Orleans/USA

Custom Ablation with the Technolas Excimer Laser
Michael C Knorz
 AAO Annual Meeting 2000, September 2000, Dallas/USA

Clinical Applications of the VISX CAP Method to Correct Irregular Astigmatism
Michael C Knorz
 AAO Annual Meeting 2000, September 2000, Dallas/USA

CIPTA (Corneal Interactive Programmed Topographic Ablation) Customized PRK for Correction of Post-keratoplasty (PKP) Astigmatism
Michael C Knorz
 AAO Annual Meeting 2000, September 2000, Dallas/USA