Mehra V, Minassian D C
Chattisgarh Eye Hospital, Fafidih, Raipur, Madhya Pradesh, India.
Br J Ophthalmol. 1988 Nov;72(11):801-3. doi: 10.1136/bjo.72.11.801.
A rapid method of grading clinically important central lens opacities has been developed for use in eye surveys and in epidemiological studies of cataract and has been field-tested in a specifically designed observer agreement study in a survey of a rural community in Central India. The grading method is based on simple measurement of the area of lens opacity that obscures the red reflex relative to the area of clear red reflex, as visualised through the undilated normal pupil. Good to almost perfect agreements were attained between two ophthalmologists and two trained ophthalmic assistants for overall grades of central lens opacity. Most disagreements were trivial in nature and were concerned with difficulties in distinguishing grade 0 from grade 1, and with hazy appearance of the red reflex in high myopes and in cases of early nuclear sclerosis. Teaching materials including video tape and slides for training survey teams and other workers are in preparation.
已开发出一种用于眼部调查以及白内障流行病学研究的快速分级临床重要性中央晶状体混浊的方法，并在印度中部一个农村社区的调查中，通过一项专门设计的观察者一致性研究进行了现场测试。该分级方法基于对通过未散瞳的正常瞳孔观察到的、遮挡红色反光的晶状体混浊面积与清晰红色反光面积的简单测量。两位眼科医生和两位经过培训的眼科助理对中央晶状体混浊的总体分级达成了良好至几乎完美的一致性。大多数分歧性质轻微，涉及难以区分0级和1级，以及高度近视者和早期核硬化病例中红色反光的模糊外观。包括录像带和幻灯片在内的培训调查团队及其他工作人员的教材正在编写中。
