Chandna A, Karki C, Davis J, Doran R M
University Department of Ophthalmology, Bristol Eye, Hospital.
Eye (Lond). 1989;3 ( Pt 6):833-9. doi: 10.1038/eye.1989.127.
We have assessed the feasibility of Preferential Looking (PL), using Teller Acuity Cards, for the estimation of binocular and monocular visual acuities in a group of mentally handicapped adults. Our results show the comparison between grating and recognition acuities, inter-observer variation, success rate, time taken and the sensitivity of this method in identifying monocular visual deficit in this group of subjects. The reasons for success or failure with PL methods in relation to criteria for mental handicap are discussed.
我们评估了使用泰勒视力卡片进行优先注视（PL）以估算一组成年智障者双眼和单眼视力的可行性。我们的结果显示了条纹视力与识别视力之间的比较、观察者间差异、成功率、所需时间以及该方法在识别这组受试者单眼视力缺陷方面的敏感性。还讨论了PL方法相对于智障标准成功或失败的原因。
