Tuesday, August 9, 2011

Gles Prescription query?

The old one is more likely right. The axis on one eye tends to be the same distance from the 180 meridian but in the opposite direction. For example, we expect pairs like 20 and 160 or 80 and 100. This is not usually exact although 25 and 155 are one such pair. It is possible for you to have an axis of 30 in one eye and 60 in the other but it is unlikely it has changed from 155 to 60.

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