Repeatability of Cone Contrast Color Vision Tests.

IF 0.9 4区 医学 Q4 BIOPHYSICS
Jeffery K Hovis, Ali Almustanyir, Mackenzie Glaholt
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Abstract

Introduction: New computerized color vision tests are gaining popularity in the aviation community. These tests determine color vision status by measuring chromatic sensitivity and they can effectively classify color vision as normal vs. abnormal. However, little information is available regarding their repeatability. We evaluated the repeatability of two such tests: the Operational Based Visual Assessment Cone Contrast Test (OCCT) and the Rabin Cone Contrast Test (RCCT).

Methods: A total of 56 subjects with normal color vision and 63 subjects with defective color vision completed both tests twice over 2 sessions. We determined the repeatability for a normal/abnormal result, between-eye differences in thresholds within a session, and between-session results for each eye.

Results: Both tests had excellent repeatability for normal vs. abnormal color vision (i.e., using a cutoff score of 75 Rabin Color Contrast Sensitivity Units). The OCCT also had excellent repeatability for acceptable vs. unacceptable color discrimination (i.e., a cutoff score of 55), whereas the RCCT repeatability was lower. The RCCT's lower repeatability was because the between-eye and between-session Limits of Agreement for the color-defective subjects were approximately ±40 relative sensitivity units. In contrast, the Limits of Agreement for the OCCT ranged from ±10 to ±15.

Discussion: These results reinforce the advantage of using a finer stimulus change when estimating cone thresholds in the clinical setting. Hovis JK, Almustanyir A, Glaholt M. Repeatability of cone contrast color vision tests. Aerosp Med Hum Perform. 2025; 96(4):287-295.

视锥对比色觉测试的重复性。
导言:新的电脑化色觉测试在航空界越来越受欢迎。这些测试通过测量色觉灵敏度来确定色觉状态,它们可以有效地将色觉分为正常与异常。然而,关于其可重复性的信息很少。我们评估了两种测试的可重复性:基于操作的视觉评估锥体对比测试(OCCT)和拉宾锥体对比测试(RCCT)。方法:56名色觉正常者和63名色觉缺陷者分别在2个疗程内完成两项测试。我们确定了正常/异常结果的可重复性,一个疗程内阈值的眼间差异,以及每只眼睛的疗程间结果。结果:两项测试对于正常和异常色觉(即,使用75拉宾颜色对比灵敏度单位的截止分数)具有极好的重复性。OCCT在可接受和不可接受的颜色区分上也有很好的重复性(即,临界值为55),而RCCT的重复性较低。RCCT重复性较低的原因是,色差受试者的眼间和会话间一致限约为±40相对灵敏度单位。相比之下,OCCT的协议限制范围为±10至±15。讨论:这些结果强化了在临床评估视锥阈值时使用更精细的刺激变化的优势。张建军,张建军,张建军,等。视锥对比色觉测试的可重复性。航空航天Med Hum Perform. 2025;96(4): 287 - 295。
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来源期刊
Aerospace medicine and human performance
Aerospace medicine and human performance PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH -MEDICINE, GENERAL & INTERNAL
CiteScore
1.10
自引率
22.20%
发文量
272
期刊介绍: The peer-reviewed monthly journal, Aerospace Medicine and Human Performance (AMHP), formerly Aviation, Space, and Environmental Medicine, provides contact with physicians, life scientists, bioengineers, and medical specialists working in both basic medical research and in its clinical applications. It is the most used and cited journal in its field. It is distributed to more than 80 nations.
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