We strongly recommend checkups with your eye doctor and a regular updating of your prescription, but sometimes life gets in the way. You might break or lose your glasses just weeks after your old ...

Dr. Colby answers the question: 'Is Rx For Glasses, Contacts Different?' Aug. 24, 2009— -- Question: How do prescriptions for contact lenses differ from prescriptions for glasses? Answer: ...

Reading your prescription starts by identifying which values belong to which eye. “OD” refers to your right eye and “OS” to ...