Deep anterior lamellar keratoplasty in keratoconus
Keywords:
DALK, Average Keratometry, keratoconus, Topography, astigmatism, BCVAAbstract
Aims: To analyse the outcome of DALK in patients with keratoconus in terms of best corrected and uncorrected visual acuity, average K and topographic astigmatism. Settings and design: Prospective interventional case series study Material and methods: 28 eyes of 28 patients diagnosed with keratoconus were evaluated from August 2009 – July 2011 in a tertiary eye care hospital. All patients underwent DALK and outcomes were assessed on 4 parameters: Average Keratometric reading, topographic astigmatism, UCVA and BCVA alongwith epidemiological analysis. Statistical analysis used: ANOVA testing and Dunnett multiple comparison test. Results: We had evaluated 28 eyes of 28patients (10 males and 18 females) in the age group of 15 to 35 years. Cases were classified as moderate (4) and severe (24) category. There was a statistical significant decrease Average K and Topographic Astigmatism in post op period which was evaluated at 1, 3 and 6 months. (p value <0.05). From the sample size, allof the patients showed improvement in visual acuity by more than one Snellens. No significant post operative complications occurred. Conclusion: DALK is a safe and effective treatment for severe keratoconus, corneal scarring and contact lens intolerance.
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