One Year Comparative Study Of Visual Refractive And Post Refractive Dry Eye Disease Outcomes Between Smooth Incision Lenticule Keratomileusis (Silk) Vs Fs-Lasik

To compare and evaluate refractive ,visual and post refractive dry eye disease outcomes after SILK and FS-LASIK.

Shroff Eye Centre

150 patients had SILK and 145 had FS-LASIK for low to moderate myopia, all age ,sex,and refraction –matched and followed for 12 months post operative. Outcome measures were refractive predictability efficacy ,safety ,residual astigmatism and dry eye evaluation performed at 1 ,3,6 and 12 months. This included OSDI ,TBUT,Schirmer 1 test , corneal staining ,tear osmolarity measurement and overall severity score. Function of corneal innervation evaluated.

Refractive predictability same between SILK and FS-LASIK. 68.3% VS 71.5% achieved ±0.05D of attempted correction (P = 0.673) and 1.03±0.07 (P=0.343). Efficacy and safety indices were 1.25±0.44 and 1.20±0.33 (P=0.322) respectively. At 12 months dry eye higher in FS LASIK group. Severity score (0-4):1.5±1.2 and 0.21±0.3 respectively. Corneal sensitivity better in SILK (p<0.01). Schirmer test significantly lower in LASIK.

SILK and FS SILK were both efficient in correcting low to moderate myopia. Incidences of post-operative dry eye syndrome comparatively significantly lower in SILK.