FP535

Incidence & clinical outcomes in eyes presenting with Diffuse lamellar keratitis post SMILE.

This study retrospectively reviewed patients operated for SMILE over 1 year,presenting with signs of DLK like clinical picture.The pre-op characteristics,intraop parameters,postop treatment & severity were recorded.UDVA,CDVA & Objective scatter index by HD analyzer were monitored.Off 1313 eyes,18 developed DLK with incidence of 1.37 %.11 grade-1 eyes were managed by stepping up steroids,6 grade-2 eyes were managed by interface wash,1 mild-grade eye needed interface wash post-op,after primary steroid therapy was ineffective.Mean UDVA & CDVA at presentation was 0.18±0.16 & 0.16±0.17 respectively,improved to 0.01 ±0.14 & -0.03 ±0.10 at resolution.Cases presented at mean of 2.7 days,resolving within 8.9 days.Mean OSI of 2.96±1.95 improved to 2.96±1.95 at resolution.Mean energy intraop was 26.33±1.71nJ showing positive correlation to OSI at postop day one.DLK if recognised and managed early,results in satisfactory outcomes.This entity may be related to the intra-op laser energy offset used.