白内障摘除及人工晶体植入术后的立体视觉

目的　了解白内障摘除及人工晶体植入术后患者的立体视觉及其影响因素。方法　对 3 0名白内障摘除及人工晶体植入术后裸眼视力≥ 0 .5患者进行立体视锐度、抑制暗点、双眼屈光度差和视像不等的检查。结果该组白内障摘除及人工晶体植入术后患者的立体视锐度为 40 7.67″± 3 90 .19″,双眼屈光度差为 1.5 3 D± 1.96D,视像不等为 3 .93 %± 3 .5 1% ,抑制暗点为 3 .17°± 1.98°。立体视锐度与双眼屈光度差或视像不等之间无明显相关关系 ,立体视锐度与抑制暗点呈正相关。结论　人工晶体植入可较大程度减小白内障术后无晶体眼的双眼屈光度差、视像不等 ,从而减轻对立体视觉的损害

Stereopsis of the Patients after Cataract Extraction and Intraocular Lens Implantation

OBJECTIVE: To understand the stereopsis of the patients after cataract extractation and intraocular lens implantation and the related factors. METHODS: In this study were examined the stereopsis of 30 patients who had undergone cataract extraction and intraocular lens implantation and whose post-operative vision acuity measurements were 0.5 or higher. RESULTS: These patients' steroacuity, anisometropia, aniseikonia and scotoma were: 407.67" +/- 390.19", 1.53D +/- 1.96D, 3.93% +/- 3.51%, 3.17" +/- 1.98" respectively. There was no significant correlation between steroacuity anisometropia and aniseikonia. There was siganificant positive correlation between steroacuity and scotoma. CONCLUSIONS: Intraocular lens implantation may ameliorate anisometropia and aniseikonia of the patients after cataract extraction and reduce the damage to stereopsis.