What is the effect of increasing the diameter of a contact lens?

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Increasing the diameter of a contact lens generally results in a tighter fit. This is because larger lenses cover more of the corneal surface and can fit more snugly against the eye. A larger diameter can help in distributing the lens pressure more evenly across the cornea, which may enhance comfort and stability during wear. However, it can also lead to a fit that is too tight in some cases, especially if the curvature does not match the contour of the eye well.

The size of the lens is critical in ensuring that it adheres well to the eye while still being comfortable. It is essential for practitioners to assess how well the lens fits after changes are made to its diameter to maintain both comfort and health.

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