One of the most common reasons for discomfort with contact lenses is poor fit. Unlike eyeglasses, which specify only a numerical prescription for visual improvement, contact lenses contain two other numbers that describe the shape of the contact lens.
Diameter is the width of the contact lens as measured in millimeters.
When properly done, a soft contact lens should cover the cornea completely and move only slightly with every blink. If the contact lens fails to move enough, the eye may get very red and possibly the vision can blur. A properly fit contact lens is neither too steep nor too flat, and remains comfortable for up to 12 hours. By far, most of our referrals for previous difficulties with contact lens comfort are a result of poor fit. You may Email us if you are having a particular comfort problem with your contact lenses.