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目的 探讨中央低视力(lowvisioncenter ,LVC)程序视野检查在术前评估白内障低视力患者视功能的价值。方法 白内障低视力患者共30例30眼,其中合并青光眼、入院后行青白联合术者2 1例2 1眼;无青光眼史、单纯行白内障手术者9例9眼。术前1日及术后3月内行LVC程序视野检查。术前同时行视网膜潜视力测定。结果 所有患者在术后总的平均阈值敏感度(meansensi tivity,MS)均有显著提高(P <0. 0 1) ,而颞侧的MS值较鼻侧的MS值改善更为明显。术前视野已有绝对暗点形成的区域,术后仍存在。与视网膜潜视力测定相比,LVC程序视野检查的MS值与术后最佳矫正视力间存在更好的对应关系。结论 术前LVC程序视野检查对于白内障尤其是合并青光眼低视力患者有特殊价值,有助于术者判断该类患者术后的视力、视野的情况,可作为术前估计其潜在视功能的新方法之一
Objective To investigate the value of central visual acuity (LVC) visual field in preoperative assessment of visual function in patients with low vision in cataract. Methods Thirty patients (30 eyes) with cataract were included in this study. Among them, 30 eyes were complicated with glaucoma and 21 cases with glaucoma after admission. There was no history of glaucoma and 9 cases with cataract alone. LVC procedure visual field examination was performed on the first day and the third month after the operation. Retinal preoperative visual acuity determination. Results All the patients had significant improvement in meansensi tivity (MS) after operation (P <0. 01), while the temporal MS value improved more significantly than the nasal MS value. Preoperative visual field has an absolute dark spots in the area, still exists after surgery. There is a better correspondence between the MS value of LVC visual field examination and the best corrected visual acuity after retinal visual acuity. Conclusions The preoperative LVC procedure visual field examination has special value for cataract, especially for patients with glaucoma and low vision. It is helpful for the surgeon to judge the visual acuity and visual field of the patients after surgery. It can be used as a new method to preoperatively evaluate the potential visual function one