| Purpose : To report one case experience with managing keratectasia following laser refractive surgery with RGP contact lens ; we also report another case of a mistaken diagnosis of keratoconus caused by corneal warpage secondary to hydrogel lens wear. Method : We retrospectively reviewed the chart of the first 35 years old patient who underwent RGP contact lens fitting for LASIK induced ectasia (OD only) with at least one year follow up. The Main outcome measures were: preoperation refraction , topographic characteristics , residual stromal bed thickness , time to develop ectasia , final UCVA and BSCVA. The second 26-year-old Chinese woman who wore hydrogel lens presented with an interest in refractive surgery. Topographies and pachymetries were performed, keratoconus was diagnosed in her right eye, and suspect keratoconus was diagnosed in her left eye. Results : UCVA,BSCVA and topographic flattens and regularity improved in first patient’right eye . Minimal 12 months clinical data follow up will be shown. As to second patient , eight weeks after initial presentation and without lens wear, corneal maps were again performed. The maps showed no evidence of keratoconus. Conclusion : Our first patient experience indicates that RGP contact lens fitting may be an effective and safe procedure for Keratectasia following laser refractive surgery . However , second case gives clinicians reasons for pause when dealing with contact lens wearers presenting with corneal curvature irregularities such as keratoconus or ectasia, because of the possibility of lens-induced warpage. |
