ReSTOR多焦点人工晶状体植入术后早期远、中、近视力的测量

目的 探讨植入ReSTOR多焦点人工晶状体患者远、中、近距离视力变化及其变化趋势.方法 为前瞻性系列病例研究.选择行超声乳化联合ReSTOR多焦点人工晶状体植入术的患者共22例(30只眼),术后3个月随访时分别进行远、中、近距离的裸眼视力检查;在远矫正的基础上,递增-0.50 D并且分别记录视力;进行生活质量问卷调查,并对远、中、近视力满意度进行自我评分.结果 28只眼(93.3%)术后屈光误差在±1.00 D内,23只眼(76.7%)术后散光在+1.00 D内.裸眼远距离(5 m)视力、中距离(60 cm)视力、近距离(33 cm)视力的平均值分别是0.91、0.40、0.64.远距矫正状态下,0、-1.50、-3.00 D调节力时视力的平均值分别为1.00、0.49、0.79.问卷调查中,5例患者走路和上下楼梯时有踏空感,2例计算机使用者抱怨无法看清屏幕,1例理发工作者抱怨无法看清顾客头发;远、中、近距离视力满意度的自我评分分别为8.0、7.5分、8.0分.结论 ReSTOR多焦点人工晶状体能提供优良的裸眼远、近视力,良好的中距离视力;与远、近视力比较,中间段距离视力有所下降,可能是影响对中间距离有特殊要求者生活质量的原因.

Measurement of visual acuity at different distances after implantation of ReSTOR multifocal intraocular lenses

OBJECTIVE: To measure visual acuity (VA) at different distances after implantation of ReSTOR multifocal intraocular lens (MIOL) and to evaluate the variation of VA with different distances. METHODS: It was a prospective case series study. Thirty eyes of 22 patients received the ReSTOR MIOL in this prospective case series study. VA was measured at several distances, and was recorded in a defocused range of 0 to -4.5 diopters (D) with gradually reduced minus spectacles based on distant refraction. A questionnaire was used to assess the satisfaction about VA of different distances. The mean follow-up time was three months. RESULTS: Postoperatively, the manifest refraction spherical equivalent was within +/- 1.00 D in 28 of 30 eyes (93.3%) and the astigmatism was within 1.00 D in 23 of 30 eyes (76.7%). The mean uncorrected distance (5 m), intermediate (60 cm) and near (33 cm) VA were 0.91, 0.40 and 0.64, respectively. The mean VA at 0 D, -1.50 D and -3.00 D pseudoaccommodation were 1.00, 0.49 and 0.79, respectively. On the questionnaire, five patients complained of unreality when walking, and two computer workers complained that they could not see screen clearly, and one hair-cutter complained that he could not see hair clearly. Self-score of satisfaction about distant, intermediate and near VA were 8.0, 7.5 and 8.0, respectively. CONCLUSIONS: Implantation of the ReSTOR MIOL offers excellent distant and near VA. The VA decreases significantly at intermediate range as compared to distant and near vision, which might reduce the quality of life for patients who need excellent vision at intermediate range.