单眼视设计的人工晶状体眼视功能临床研究

目的 探讨应用单眼视原理设计双眼白内障超声乳化联合植入单焦点人工晶状体术后的视功能情况.方法 对双眼年龄相关性白内障患者42例(84只眼),分为常规组21例(42只眼)及单眼视组21例(42只眼).常规行白内障超声乳化联合折叠式人工晶状体植入术.分别记录术前最佳矫正视力及术后1周单眼裸眼远、近视力及双眼裸眼远、近视力.采用SAS8.2统计软件对结果进行统计学分析.结果 (1)术前平均最佳矫正视力常规组4.44,单眼视组4.47(P ＞0.05),患者平均年龄常规组71岁,单眼视组69.5岁(P ＞0.05),差异无统计学意义.(2)术后1周单眼裸眼远视力常规组4.90,单眼视组:优势眼4.94(P ＞0.05),与常规组比较差异无统计学意义;非优势眼4.71(P < 0.05),与常规组比较差异有统计学意义.术后1周单眼近视力常规组4.36,单眼视组:优势眼4.37(P＞0.05),与常规组比较差异无统计学意义;非优势眼4.78(P < 0.05),与常规组比较差异有统计学意义.(3)术后1周双眼裸眼远视力常规组4.91,单眼视组4.91(P ＞0.05),与常规组比较差异无统计学意义;术后1周双眼近视力常规组4.42,单眼视组4.78(P < 0.05),与常规组比较差异有统计学意义.结论 单眼视设计的人工晶状体眼术后双眼远视力与常规设计人工晶状体眼相同,但近视力明显好于常规设计.按照单眼视原理设计人工晶状体可以较好的临床应用.

A clinical study of visual function in monovision pseudophakic eyes

Objective To study the visual function of the eyes with binocular phacoemulsification and single-focus intraocular lens implantation designed by monovision principle. Methods Forty-two patients (84 eyes) with binocular age-related cataract were divided into a conventional group and a monovision group, and there were 21 patients (42 eyes) in each group. Routine cataract phacoemulsification and foldable intraocular lens implantation were performed on all the eyes. Preoperative best-corrected visual acuity and postoperative (one week after the operation) monocular uncorrected distance visual acuity, monocular uncorrected near vision acuity, binocular uncorrected distance visual acuity, binocular uncorrected near vision acuity were compared for the two groups. Data were analyzed by the SAS 8.2 statistics program. Results ① The mean preoperative best-corrected visual acuity was 4.44 of the conventional group compared with 4.47 of the monocular visual group (P>0.05), and there was no statistically significant difference. ②Statistically significant difference of postoperative monocular uncorrected distance visual acuity was not found between the conventional group (4.90) and the dominant eyes in the monocular visual group (4.94, P >0.05), however, was found when compared with the non-dominant eyes in the monocular visual group (4.71, P <0.05). Statistically significant difference of postoperative monocular uncorrected near visual acuity was not found between the conventional group (4.36) and the dominant eyes in the monocular visual group (4.37, P >0.05), but was found when compared with the non-dominant eyes in the monocular visual group (4.78, P <0.05). ③ Statistically significant difference of postoperative binocular uncorrected distance visual acuity was not found between the conventional group (4.36) and the monocular visual group (4.91, P >0.05), however, there was statistically significant difference of postoperative binocular uncorrected near visual acuity between the conventional group (4.42) and the monocular visual group (4.78, P <0.05). Conclusions The postoperative binocular uncorrected distance visual acuity of the monovision pseudophakic eyes is the same as the conventional pseudophakic eyes, the near visual acuity is much better than the conventional pseudophakic eyes. The monovision principle to choose the intraocular lens can be better applied in the clinic.