Fielder A R, Dobson V, Moseley M J, Mayer D L
Department of Ophthalmology, University of Birmingham Medical School, UK.
Ophthalmic Paediatr Genet. 1992 Jun;13(2):101-10. doi: 10.3109/13816819209087610.
Preferential looking-based tests of acuity have been available for over a decade. The authors discuss their use in clinical practice, particularly in three groups in whom acuity could not be quantified by traditional means: normal infants, and young children who are either mentally retarded, or who have visual disorders. Preferential looking (PL) testing has increased our understanding of the natural history of visual pathway disorders and has revealed certain patterns of acuity development. Early acuity development may be normal, delayed, or stationary, while in later infancy and childhood the following abnormal patterns have been identified: asymptotic, parallel, catch-up, or regressing. While this information has introduced a degree of complexity hitherto unknown which, if misunderstood, can lead to test misinterpretation, it offers the clinician invaluable information to improve patient care, and may also offer clues to the fundamental mechanisms of visual development.
基于优先注视的视力测试已经存在了十多年。作者讨论了它们在临床实践中的应用，特别是在三类无法通过传统方法量化视力的人群中：正常婴儿、智障幼儿或有视觉障碍的幼儿。优先注视（PL）测试增进了我们对视觉通路疾病自然史的理解，并揭示了某些视力发展模式。早期视力发展可能正常、延迟或停滞，而在婴儿期和儿童期后期，已发现以下异常模式：渐近式、平行式、追赶式或倒退式。虽然这些信息引入了一种前所未有的复杂程度，如果误解可能导致测试解读错误，但它为临床医生提供了改善患者护理的宝贵信息，也可能为视觉发育的基本机制提供线索。
