What are scleral contact lenses?
Scleral contact lenses are larger than standard gas permeable (GP) contact lenses. The smallest sclerals are approximately 14.5 mm in diameter, and the largest can be up to 24 mm. Lenses that are 18 mm or smaller are subcategorized as mini-sclerals. The average human cornea is approximately 11.8 mm in diameter so even the smallest… Read More »
- Posted on: Dec 10 2014