Ophthalmic Surgeon



Vision is profoundly important, and plays an integral role in quality of life. At Vision Clinic Sydney we aim to perfect vision and prevent vision loss using the safest techniques available.

Dr Kumar chose ophthalmology because he was fascinated by the complexity of the eye and vision. He is enabled by superior technology and surgical techniques available within ophthalmology to improve vision for patients.

Dr Kumar is an Ophthalmic Surgeon with specific and extensive training in conventional and Laser Cataract Surgery, Laser Vision Correction, alternatives to laser surgery, Cornea Transplantation Surgery, the management of Keratoconus and Pterygium Surgery. Dr Kumar is also committed to the management of glaucoma and retina conditions.

Dr Kumar graduated in Medicine from the University of Newcastle in 1998 and earned a Masters of Public Health degree from the University of New South Wales. He worked at the Sydney Retina Clinic with Dr Andrew Chang prior to completing his Ophthalmology Fellowship training at the Sydney Eye Hospital.

Thereafter, Dr Kumar was awarded the Sydney Eye Hospital Alumni Travelling Fellowship to pursue further training in Cornea and Refractive Surgery.

This component of his training occurred under the guidance of Professors David Rootman and Allan Slomovic at the Toronto Western Hospital and the Yonge Eglinton Laser Centre at the University of Toronto in Canada.

Subsequently he has undertaken a Masters in Cataract and Refractive Surgery from the University of Sydney as part of his ongoing commitment to self education.

Committed to education in the field of ophthalmology, Dr. Kumar is a clinical senior lecturer at the Australian School of Advanced Medicine, Macquarie University. He is a regular reviewer for articles submitted for publication in the Journal of Cataract and Refractive Surgery, the British Journal of Ophthalmology and Clinical and Experimental Ophthalmology. He has published numerous peer reviewed papers and book chapters involving his specialty interests. He is a member of the Australian, American and European Societies of Cataract and Refractive Surgery.

Dr Kumar has extensive experience using the femtosecond laser to perform LASIK and cornea transplantations. Given this background, he was amongst the first surgeons in Australia to perform femtosecond laser assisted cataract surgery.

Dr. Kumar is committed to the preservation and improvement of quality of vision. He is dedicated to maintaining the highest standard of ophthalmic medical and surgical care.


eye specialist
eye doctor sydney
eye specialist sydney


  • Professional Affiliations
  • Publications
university toronto
university sydney
liverpool eye surgery
Australian Medical Association
chatswood hospital

Thompson C, Kumar N, Billson FA, Martin F.
The aetiology of perforating ocular injuries in children.
British Journal of Ophthalmology. 2002; 86(8):920-922.

Chang A, Kumar NL, Zhu M, Billson FA, Beaumont P.
Indocyanine green (ICG) localisation in surgically excised choroidal neovascular membranes (CNV) in age-related macular degeneration (AMD).
British Journal of Ophthalmology. 2004; 88:307-309.

Kumar N, Chang A, Beaumont P.
Sympathetic ophthalmia following cyclophotocoagulation for rubeotic glaucoma.
Clinical and Experimental Ophthalmology. 2004; 32(2):196-198.

Kumar N, Zeldovich A, Chang A.
Scleral Buckle Intrusion.
Clinical and Experimental Ophthalmology. 2004; 32(2):228-229.

Kumar NL, Black D, McClellan K.
Daytime presentations to a Metropolitan Ophthalmic Emergency Department.
Clinical and Experimental Ophthalmology. 2005; 33 (6), 586-592.

Chan C, Ritenour R, Kumar NL, Slomovic A, Rootman D.
Femtosecond Laser-assisted Mushroom Configuration Deep Anterior Lamellar Keratoplasty.
Cornea. 2010; 29:290-5.

Rootman DB, Kumar NL, Trope G, Rootman DS.
Buccal mucous membrane for the reconstruction of complicated leaking trabeculectomy blebs.
Journal of Glaucoma. 2010; 19:270-4.

Shehadeh-Mashor, Kaiserman I, Kumar NL, Sansanayudh W, Rootman DS.
The Effect of Successful Rebubbling After Descemet Stripping Automated Endothelial Keratoplasty on Endothelial Cell Counts.
Cornea. 2010; 29: 878-882.

Sansanayudh W, Bahar I, Kumar NL, Singal N, Rootman DS.
Intrastromal corneal ring segment SK implantation for moderate to severe keratoconus.
Journal of Cataract and Refractive Surgery. 2010; 36:110-3.

Kumar NL, Kaiserman I, Shehadeh-Mashor R, Ritenour R, Sansanayudh W, Rootman D.
IntraLase enabled astigmatic keratotomy for post keratoplasty astigmatism: on axis vector analysis.
Ophthalmology. 2010; 117:1228-1235.e1.

Shehadeh-Mashor, Kumar NL, Slomovic AR, Rootman DS.
Deep lamellar endothelial keratoplasty: up to five year follow up.
Ophthalmology. 2010; 117(4):680-6.

Kumar NL, Rootman DS.
Newer Surgical Techniques for the Management of Keratoconus.
International Ophthalmology Clinics. 2010; 50:77-88.

Shehadeh-Mashor, Kumar NL, Ritenour RJ, Rootman DS.
Keratoconus caused by eye rubbing in patients with Tourette syndrome.
Canadian Journal of Ophthalmology. 2011; 46:83-6.

Lal S, Kumar NL.
How to Treat: Age Related Cataract.
Australian Doctor August 2011.

Kumar NL, Rootman DS. (2013).
Femtosecond Laser Enabled Correction of Postkeratoplasty Astigmatism. In: Copeland RA, and Afshari NA. Principles and Practice of Cornea. New Delhi: Jaypee Brothers Medical
Publishers Pty Ltd. p1427-1436.

Shehadeh-Mashor R, Bahar I, Rootman DB, Kumar NL, Singal N, Slomovic AR, Rootman DS.
Zig-zag Versus Top-hat Configuration in Intralase Enabled Penetrating Keratoplasty.
British Journal of Ophthalmology. 2013; Sep 30. doi: 10.1136/bjophthalmol-2012-303049.

Viswanathan D, Kumar NL.
Bilateral Femtosecond Enabled Intrastromal Astigmatic Keratotomy to correct high post-penetrating keratoplasty astigmatism.
Journal of Cataract and Refractive Surgery 2013; Dec; 39(12):1916-20.

Viswanathan D, Kumar NL, Males J.
Outcome of Corneal Collagen Crosslinking for progressive Keratoconus in paediatric patients.
BioMed Research International 2014; http://dx.doi.org/10.1155/2014/140461.

Viswanathan D, Kumar NL, Males J, Graham S.
Comparative analysis of corneal measurements obtained from a Scheimpflug camera and an integrated Placido-optical coherence tomography device in normal and keratoconic eyes.
Acta Ophthalmologica 2015; 93(6): e488-94.

Viswanathan D, Kumar NL, Males J, Graham S.
Relationship of Structural Characteristics to Biomechanical Profile in Normal, Keratoconic, and Crosslinked Eyes.
Cornea 2015; 34(7): 791-6.


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