| 摘要 |
PCT No. PCT/GB97/03253 Sec. 371 Date Jun. 3, 1999 Sec. 102(e) Date Jun. 3, 1999 PCT Filed Nov. 27, 1997 PCT Pub. No. WO98/25173 PCT Pub. Date Jun. 11, 1998Color discrimination may be improved by fitting to a patient's eye a plastics contact lens having a tinted central circular section. The optimum tint is determined by testing the effects of a sequence of differently tinted lens on a patient.
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