Simmers A J, Gray L S
Department of Psychology, University of Essex, Wivenhoe Park, Colchester, United Kingdom.
Optom Vis Sci. 1999 Feb;76(2):82-7. doi: 10.1097/00006324-199902000-00014.
In this case report, the efficacy of occlusion therapy was investigated in a strabismic amblyope above the currently accepted age for treatment. Success was assessed not simply by a change in visual acuity, but by examining a number of parameters which relate to both sensory and motor aspects of visual function.
As well as routine orthoptic and optometric evaluation, additional tests were administered as follows: high and low contrast LogMAR Crowded Acuity, repeat letter acuity, and hyperacuity measurements.
A functional loss in each of the tests used was demonstrated, and occlusion therapy appeared to improve all aspects of the amblyopia, with a significant difference in pre- and post-therapy results.
The results of this study suggest that: (1) occlusion therapy can produce substantial improvements in visual function in adult amblyopia; (2) many aspects of visual function can improve beyond the traditional critical periods for development in amblyopia; and (3) with good patient compliance and cooperation, age should not be the critical factor in the initiation of treatment for amblyopia.
在本病例报告中，研究了遮盖疗法对一名超过目前公认治疗年龄的斜视性弱视患者的疗效。成功与否不仅通过视力变化来评估，还通过检查一些与视觉功能的感觉和运动方面相关的参数来评估。
除了常规的视光学和验光评估外，还进行了以下额外测试：高对比度和低对比度的LogMAR拥挤视力、重复字母视力和超视力测量。
所用的每项测试均显示出功能丧失，遮盖疗法似乎改善了弱视的各个方面，治疗前后结果有显著差异。
本研究结果表明：（1）遮盖疗法可使成人弱视患者的视觉功能得到显著改善；（2）视觉功能的许多方面可在弱视发育的传统关键期之后得到改善；（3）在患者良好的依从性和配合下，年龄不应成为弱视治疗起始的关键因素。
