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Date Posted: 00:12:04 09/15/03 Mon
Author: Steve H LEUNG OD.
Subject: Answer the Question" Prevention Myopia use plus lens

Liz: Thank for your email.
The idea of plus lens is to relieve near point stress. It is absolute no use at time of driving. minus lens correction is for far vision.
Your myopia of -1.70 implies your far point is 60 cm. You can read at any distance shorter than that without the minus lens. However, if you read and write at a distance around 33 cm, the dioptric length is -3.00 D. In order to relieve the accommodation of the eye at such distance. You may consider a pair of plus +0.75 or +1.25 for complete relaxtion at such distance for protracted work.
With the use of plus lens for near-work, your myopia will not get worse. This is the goal of prevention by plus lens.

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