大龄近视患者LASIK的特点及临床分析

目的:探讨对大龄近视患者施行准分子激光原位角膜磨镶术(LASIK)的手术设计特点及疗效。方法：对48例、96眼≥40岁的近视患者行LASIK治疗，并对术前屈光度、预矫度数、手术疗效等与对照组(＜40岁，54例、108眼)进行比较分析。结果：大龄近视患者术后6月时远视力平均为0.97±0.30，虽然低于同期低龄对照组足矫视力(1.18±0.19)，但优于拟矫度数眼镜时对应的平均视力(0.74±0.16)。近视力达到J1的比例低于对照低龄组，干眼的症状比低龄组明显。结论：大龄近视患者进行LASIK手术安全、有效。鉴于年龄所造成的老视，需减少实际度数矫正，以兼顾术后远、近视力。

Characteristics of excimer laser in situ keratomileusis for myopia in aged patients

To study the characteristics and curative effect of excimer laser in situ keratomileusis (LASIK) for myopia in aged patients. Methods：Forty eight patients over 40 years (96 eyes) were treated with LASIK, and the preoperative refraction, the refractive diopter supposed to be corrected and the curative effects were compared with the control group (54 patients less 40 years, 108 eyes operated in the same term). Results： The postoperative uncorrected far visual acuity of older myopic patients was 0.97±0.30, which was lower than that of full correction in younger patients operated in the same term (1.18±0.19), but was better than the far visual acuity of supposed refractive diopter in spectacle (0.74±0.16). Near vision of older myopic patients reaching the scale of J1 was lower than contrastive younger group, and complaint of dry eye was obvious more than younger group. Conclusions： LASIK is safe and effective for older myopic patients. Actual corrective diopter may be reduced because of age related presbyopia, and the far vision and near vision would be satisfactory postoperatively.