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Photorefractive keratectomy with collagen cross linking in forme fruste/ stable keratoconus

Poster Details

First Author: A.Bansal INDIA

Co Author(s):    R. Reddy              

Abstract Details

Purpose:

To report the efficacy and safety of PRK combined with collagen cross linking in cases of forme fruste and stable keratoconus.

Setting:

Cornea, cataract and Refractive surgery service, Centre for sight, Hyderabad, India.

Methods:

Three patients ( 6 eyes) of forme fruste keratoconus and three ( 6 eyes) of stable non progressive keratoconus underwent PRK with Mitomycin-C application using a Visumax laser combined with collagen cross linking procedure using Dresden's protocol with epithelium off technique. Mean age of the patients was 28 +/- 7.4 years, mean preop spherical equivalent was -4.65 D +/- 2.34 and mean pre op cylinder was -2.94 +/- 1.2. Mean followup was 9.4 months

Results:

Epithelium healed in an average period of 3.9 days. 8 eyes achieved unaided visual acuity of 6/6, while all eyes were 6/9 or better. 8 eyes showed superficial haze of varying degree at 3 months, however at the end of 6 months only 2 eyes showed trace haze. Mean post operative refraction (sph.eq.) was within +/- 0.5 D of emmetropia in 10 eyes at 4 weeks postop. There was no regression seen till the last followup in any of the eyes. No patient complained of glare or night vision problems.

Conclusions:

PRK combined with collagen cross linking is a safe and effective procedure to correct the refractive errors in cases of forme fruste keratoconus and stable non progressive keratoconus.

Financial Disclosure:

NONE

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