黄斑病变致视力下降患者的液晶显示微视野检查

Liquid crystal display microperimetry in eyes with reduced visual acuity from macular pathology.

作者信息

Chalam Kakarla V, Shah Vinay A

机构信息

Department of Ophthalmology, University of Florida College of Medicine, Jacksonville, Florida 32209, USA.

出版信息

Indian J Ophthalmol. 2004 Dec;52(4):293-6.

PMID:15693320

Abstract

PURPOSE

To correlate fixation stability and retinal sensitivity measured by liquid crystal display (LCD) microperimetry to visual acuity in eyes with macular pathology.

DESIGN

Retrospective chart review

METHODS

The cohort included 26 eyes of 26 patients, divided into two groups according to visual acuity (Group 1 eyes 6/15 - 6/48, Group 2: < or = 6/60). Macular sensitivity and fixation stability were measured using the LCD microperimeter. Mean retinal sensitivity (at central 12 degrees) and fixation stability (at 2 degrees and 4 degrees) were correlated with best-corrected visual acuity.

RESULTS

Mean retinal sensitivity correlated with the visual acuity in both groups [Group 1 eyes: 28 point central 12 degrees (9.0 dB); Group 2: central 12 degrees (4.183 dB)] (P < 0.05). The fixation stability correlated similarly with the visual acuity for the groups [Group 1 eyes: 2 degrees (81.2%) and 4 degrees (94.6%); Group 2 eyes: 2 degrees (44.1%) and 4 degrees (80.7%] (P < 0.05).

CONCLUSION

In the present study, the mean retinal sensitivity and fixation stability measured with LCD microperimeter correlated with visual acuity. LCD microperimetry reliably measures fixation stability and retinal sensitivity in eyes with various macular pathologies.

摘要

目的

探讨液晶显示器（LCD）微视野计测量的注视稳定性和视网膜敏感度与黄斑病变患者视力的相关性。

设计

回顾性病历研究

方法

该队列包括26例患者的26只眼，根据视力分为两组（第1组：视力6/15 - 6/48；第2组：视力≤6/60）。使用LCD微视野计测量黄斑敏感度和注视稳定性。平均视网膜敏感度（中央12度范围）和注视稳定性（2度和4度范围）与最佳矫正视力进行相关性分析。

结果

两组的平均视网膜敏感度均与视力相关[第1组：中央12度范围为28点（9.0 dB）；第2组：中央12度范围为（4.183 dB）]（P < 0.05）。两组的注视稳定性与视力的相关性相似[第1组：2度范围为（81.2%），4度范围为（94.6%）；第2组：2度范围为（44.1%），4度范围为（80.7%）]（P < 0.05）。