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What is a contact lens exam?

Contact lenses come in a wide variety of designs, materials and sizes. A contact lens exam, which measures the shape of your eye and how moist your eyes are, helps…more

Do glasses prescriptions have an expiry date?

Yes! Your prescription can change over time thanks to aging and medical conditions like diabetes, blood pressure, and cataracts, among others. If your eyesight is likely to change, your optometrist…more

Is PD part of the prescription?

Pupillary distance (PD) is the distance between your pupils. It is one of the many measurements taken when glasses are being made and helps make sure your lenses are properly…more