激光原位角膜磨镶术患者前瞻性评估中的暗适应瞳孔大小。

Dark-adapted Pupil Sizes in a Prospective Evaluation of Laser in situ Keratomileusis Patients.

出版信息

J Refract Surg. 2000 Mar 2;16(2 Suppl):S239-41. doi: 10.3928/1081-597X-20000302-08.

DOI:10.3928/1081-597X-20000302-08

Abstract

PURPOSE

This study presents the results of scotopic pupil size measurement in a group of laser in situ keratomileusis (LASIK) patients and the implications this value has for night vision symptoms and treatment zones.

METHODS

This was a prospective study measuring the dark-adapted pupil of 218 patients using a handheld pupillometer.

RESULTS

The mean scotopic pupil size was 5.66 mm with a standard deviation of 1.04 mm. Pupils ranged in size from 3.00 mm to 9.00 mm.

CONCLUSION

Results suggest that a number of patients may have seotopic pupil size well beyond the treatment zones commonly used or available in refractive laser systems. Treating with an ablation zone that is smaller than the mesopic pupil will often result in night vision disturbances. Next generation technology such as the Nidek EC-5000 excimer laser can incorporate larger treatment diameters in order to reduce the incidence of halos and glare at night. [J Refract Surg 2000; 16(suppl):S239-S241].

摘要

目的

本研究介绍了一组激光原位角膜磨镶术（LASIK）患者的暗适应瞳孔大小测量结果，以及该值对夜间视觉症状和治疗区的影响。

方法

这是一项前瞻性研究，使用手持式瞳孔计测量 218 名患者的暗适应瞳孔。

结果

平均暗适应瞳孔大小为 5.66 毫米，标准偏差为 1.04 毫米。瞳孔大小从 3.00 毫米到 9.00 毫米不等。

结论

结果表明，许多患者的暗适应瞳孔大小可能远远超出了折射激光系统中常用或可用的治疗区。用比中光瞳孔小的消融区进行治疗通常会导致夜间视力障碍。下一代技术，如尼德克 EC-5000 准分子激光，可以采用更大的治疗直径，以减少夜间光晕和眩光的发生率。[J 折射手术 2000;16(suppl):S239-S241]。