コンタクトレンズのエッジ

The edge of contact lens

I．緒言

　コンタクトレンズ（以下コレと略す）を合わせる際に，自身では，あわせ方が完全であると思い，患者に装用訓練をすすめても，異物感が仲々とれなかつたり，疼痛，充血がとれなくて，再三苦情を聞く事を経験される方があると思う。その原因には種々あり，初心者には仲々その原因が直ぐ把握出来ない事が多い。その内，よく見逃がされる原因の一つに，コ．レ．のエッジの問題があるので，ここに紹介して見たいと思う。

However successful the contact lens fitting may be, it is no good if we find some faults in the lens itself.

The author, therefore, often discussed the problem of the lens edge and, moreover, commented on "how to make it" and "how it should be".

At the same time he showed, after severe magnifying examination by a projector, how the contact lenses on the market were incorrectly edged and also strongly requested a more conscientious attitude on the side of the makers, as well as the indispensability of proper test on the side of doctors.