摘要目的 观察病理性近视继发中心凹视网膜劈裂的固视特点.方法 屈光度≥-6.00 D、光相干断层扫描(OCT)检查证实有黄斑中心凹视网膜劈裂的患者36例42只眼纳入本研究.其中,合并中心凹处视网膜脱离者11只眼,合并黄斑裂孔者12只眼,无视网膜脱离及黄斑裂孔者19只眼;并以此分为3组.采用MP-1微视野计对3组患者行固视检查,记录受检眼固视点位置和2°视野范围内固视稳定性.结果 合并中心凹处视网膜脱离组及合并黄斑裂孔组患者偏心固视形成在中心凹上方;无视网膜脱离及黄斑裂孔组患者自然形成固视位置位于中心凹处视网膜.合并中心凹处视网膜脱离组、合并黄斑裂孔组、无视网膜脱离及黄斑裂孔组2°视野范围内固视稳定性分别为(23±4)%、(59±6)%、(91±11)%,组间比较差异有统计学意义(F=243.47,P＜0.01).结论 病理性近视继发中心凹视网膜劈裂无视网膜脱离及黄斑裂孔患者固视位置位于中心凹处,未形成偏心同视且同视稳定;合并中心凹处视网膜脱离及黄斑裂孔患者固视位置均位于上方视网膜,形成偏心同视.

abstractsObjective To observe the fixation features of foveoschisis in pathological myopia patients.Methods 36 patients(42 eyes)with>-6.00D myopic degree and foveoschisis who diagnosed by optical coherence tomography were included.The patients were divided into foveoschisis with retinal detachment group(11 eyes),foveoschisis with macular hole group(12 eyes)and only foveoschisis group(19 eyes).Micro-perimeter MP-1 was used to identify the fixation location and fixation stability.Results The eccentric fixation were formed above the foyea in the foveoschisis with retinal detachment and foveoschisis with macular hole group,the fixation location was formed on fovea in the only foveoschisis group.The fixation stability of the foveoschisis with retinal detachment,foveoschisis with macular hole and only foveoschisis group were(23±4)0A,(59±6)% ,(91±11)% respectively,the difference was statistically significant(F=243.47,P＜0.01).Conclusions The fixation location is formed on foyea in the patients with foveoschisis in pathological myopia.The eccentric fixation is formed above the fovea in the patients who has foveoschisis with retinal detachment and macular hole in pathological myopia.