These large gas permeable lenses offer the exact same advantages as conventional GP lenses when compared with soft contact lenses, including:
- Sharp vision
- Increased durability
- Reduced risk of complications
Scleral lenses do not just cover a portion of the cornea in the way that conventional gas permeable lenses do. Instead, they straddle the entire corneal surface and sit on the ‘white’ of the eye (known as the sclera).
Due to their size, scleral lenses are more stable than conventional gas permeable lenses. The chances of accidentally becoming dislodged from the eye are greatly reduced and this extra degree of comfort makes them comparable to soft lenses, particularly if your eyes are sensitive or your corneas are irregularly shaped.
All modern scleral lenses are made with highly breathable, rigid gas permeable lens materials. Therefore, although scleral lenses cover the entire cornea, plenty of oxygen reaches the front surface of the eye, ensuring it remains healthy and comfortable.