If you want to wear contact lenses but have had trouble wearing them in the past — or you've been told you are not a good candidate for contacts — scleral contact lenses may be the solution you are looking for.
These large-diameter gas permeable (GP) lenses offer the same advantages that conventional GP lenses have compared with soft contacts, including:
- Sharper vision
- Greater durability
- Easier handling
- Less risk of complications
They are called "scleral" lenses because, instead of covering only a portion of the cornea (like conventional GP lenses), these large GP lenses vault over the entire corneal surface and rest on the "white" of the eye (the sclera).
Because of their size, scleral lenses are more stable on the eye than conventional GP lenses — so they are less likely to accidentally dislodge from the eye. This stability also can make them more comfortable than conventional GP lenses; scleral lenses provide initial comfort similar to soft lenses, especially for sensitive eyes or irregularly shaped corneas.