Izquierdo Luis, Henriquez Maria A, Zakrzewski Peter A
Research Department, Instituto de Ojos Oftalmo Salud, Lima, Peru.
J Refract Surg. 2008 Feb;24(2):197-9. doi: 10.3928/1081597X-20080201-11.
To report a case of an abnormally thick flap that was detected with the use of anterior segment optical coherence tomography (OCT) prior to planned LASIK retreatment surgery.
A 43-year-old man presented 6 years after bilateral LASIK surgery with uncorrected visual acuity (UCVA) of 20/20 in the right eye and 20/100 in the left eye, and best spectacle-corrected visual acuity (BSCVA) of 20/20 in the right eye and 20/20 in the left eye (refraction -2.25 -1.25 x 131). Anterior segment OCT was performed before LASIK retreatment surgery in the left eye.
The flap was found to be 394 microm and the residual stromal bed was too thin (152 microm) to allow for safe LASIK retreatment surgery. After waiting 4 months to ensure refractive stability, photorefractive keratectomy was performed. Postoperative UCVA was 20/20 plano.
The use of anterior segment OCT in the preoperative examination for planned LASIK retreatment surgery provided more reliable data.
报告1例在计划进行准分子原位角膜磨镶术（LASIK）再次手术前，使用眼前节光学相干断层扫描（OCT）检测到瓣异常增厚的病例。
1例43岁男性，双眼LASIK术后6年就诊，右眼裸眼视力（UCVA）为20/20，左眼为20/100，右眼最佳矫正视力（BSCVA）为20/20，左眼为20/20（屈光不正-2.25 -1.25×131）。左眼在LASIK再次手术前进行了眼前节OCT检查。
发现瓣厚394微米，残余基质床过薄（152微米），无法进行安全的LASIK再次手术。等待4个月以确保屈光稳定后，进行了准分子激光角膜切削术。术后UCVA为20/20平光。
在计划进行LASIK再次手术的术前检查中使用眼前节OCT可提供更可靠的数据。
