Japanese

Damage to the corneal endothelium following contact lens wear and aproposal of safety guidelines Hiroshi Ichioka 1 1Ichioka Eye Clinic pp.1286-1290
Published Date 1999/6/15
DOI https://doi.org/10.11477/mf.1410906436
  • Abstract
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I evaluated the corneal endothelium in 1,369 contact lens wearers. They were under 55 years of age and were free of eye diseases. Conventional hard and soft contact lens was used by 891 and 478 eyes respectively. Decrease in corneal endothelial cells below 2,000 cells/mm2 was present in 10 eyes of 6 users. The incidence of endothelial damage was correlated neither with the length of history nor with the daily duration of contact lens wearing. There was a significant correlation between corneal endothelial cells below 2,500 cells/mm2 and daily duration of contact lens wear exceeding 12 hours (p<0.001). There was no eye with corneal endothelial cells below 2,500 cells/mm2 when the daily duration of contact lens wear was less than 12 hours. The findings indicate that contact lens wearers have to be examined periodically for corneal endothelial cells and that the daily duration of contact lens wear must not exceed 12 hours.


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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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