方法用病例对照研究方法，选择行白内障手术的患者97例，进行色觉检查及填写统一设计的问卷调查。
Methods The case-control association study and were adopted to examinate color perception before and after intraocular lens implantation and in 97 patients.
结论(1)颜色视觉诱发电位客观地检查先天性色觉异常是可行的，对红绿色盲和绿色盲尤为敏感。
Conclusion (1) it is feasible to use chromatic VEP for examining congenital color vision deficient, especially for red green blindness and deuteranopia.
其余13例，占总检查人数的6％，包括甲型色盲3人，乙型色盲3人，甲型异常三色觉者1人，乙型异常三色觉者2人和极端乙型异常三色觉者4人。
The rest, 13 cases, constituting a total of 6% COlour defectives of the sample, consist of 3 protans, 3 deutans, 1 protanomal, 2 deuteranomals and 4 extreme deuteranomals.
其余13例，占总检查人数的6％，包括甲型色盲3人，乙型色盲3人，甲型异常三色觉者1人，乙型异常三色觉者2人和极端乙型异常三色觉者4人。
The rest, 13 cases, constituting a total of 6% COlour defectives of the sample, consist of 3 protans, 3 deutans, 1 protanomal, 2 deuteranomals and 4 extreme deuteranomals.
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