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While glasses sit away from your face, contact lenses rest directly on your eye. A GP prescription includes specific measurements like Base Curve (BC) and Diameter (DIA) to ensure the rigid material fits your cornea comfortably.

In the UK, you must have a valid contact lens prescription (distinct from a glasses prescription) to purchase lenses. buy gas permeable contact lenses online uk

Prescriptions typically last for one to two years . 2. Find a Reputable Online Retailer While glasses sit away from your face, contact