The Scleral Lens (Sclera Lens) is a lens that sites over the cornea and sclera part of the eye.
A Sclera lens is similar in form in some respect to contacts used for eye correction, but are double the size and meant to protect the cornea of the eye. Unlike traditional contacts, scleral lenses are gas permeable (GP) contacts, rigid lenses made of durable plastic that transmits oxygen. Also known as rigid gas permeable lenses, RGP lenses, and oxygen permeable lenses.
GP can be used to correct vision:
Scleral Lenses are used to help protect the cornea from different conditions. For a person with NF2 the likely reasons might include:
When the facial nerve is damaged and results in an eye unable to produce tears and severe dry eye, Diplopia (double vision) from lazy eye may develop as severe dry eye can make glasses or traditional contacts from assisting in vision. Over time double vision slowly changes to inability to see from the eye instead of double vision.
Scleral Lenses are available worldwide, different brands and manufacturers. One option in the United States and Canada is BostonSight® under the name PROSE (prosthetic replacement of the ocular surface ecosystem)
These lenses are available in different brands and which is ideal should be considered after reviewing all brand advantages and disadvantages.
Scleral lens fitters are the doctors who help select the right shape of scleral lense for patients, based on eye issues and eye shape. There are many brands and lens fitters worldwide.
Coming soon, a complete list of manufacturers, brands, and fitters around the world.