Leat S J, North R V, Bryson H
Laboratory of Experimental Optometry, University of Wales College of Cardiff, UK.
Ophthalmic Physiol Opt. 1990 Jul;10(3):219-24.
It has been suggested that the wearing of band-pass tints may improve the contrast performance in certain ocular conditions. We examined this by measuring grating visual acuity (VA) for targets of various contrasts. The benefits of Corning CPF 511, 527 and 550 lenses, and neutral density (ND) filters were examined with and without the presence of glare. Generally, patients with anterior sector conditions showed improved performance with band-pass filters (not with ND filters). It is suggested that the filter reduces the scatter within the ocular media. People with retinitis pigmentosa or diabetic retinopathy rarely benefited. The CPF 511 most frequently improved VA followed by CPF 527 and 550 respectively. We suggest that a condition of glare is incorporated when assessing suitability with tints.
有人提出，佩戴带通色镜可能会在某些眼部疾病中改善对比度表现。我们通过测量不同对比度目标的光栅视力（VA）对此进行了研究。在有和没有眩光的情况下，研究了康宁CPF 511、527和550镜片以及中性密度（ND）滤光片的效果。一般来说，前部眼部疾病患者使用带通滤光片时表现有所改善（使用ND滤光片则不然）。有人认为该滤光片可减少眼内介质中的散射。患有色素性视网膜炎或糖尿病性视网膜病变的人很少从中受益。CPF 511最常改善视力，其次分别是CPF 527和550。我们建议在评估色镜适用性时纳入眩光情况。
