العدسات الصلبية

What are scleral contact lenses?

Scleral contact lenses are a type of contact lens with a large diameter. They are designed to fit over the white of the eye (the sclera) - not just the cornea. There is no physical contact with the cornea itself, as the lens “vaults” over the cornea while resting on the sclera. This tends to produce a more comfortable fit for patients and fewer cases of dry eyes.

Scleral lenses can come in a range of sizes depending on the complexity of the condition you have.

What are scleral contact lenses for?

Scleral contact lenses help to correct vision in patients who struggle to wear soft or gas-permeable contact lenses. They can be used by patients with a wide range of conditions including:

As well as being comfortable, scleral lenses encourage optimal corneal health by ensuring it stays wet and is protected from foreign objects. Scleral lenses are fixed in place and therefore do not rotate out of position. Ultimately, a patient with corneal problems may be able to delay corneal transplant surgery.

What are the alternatives?

If you have astigmatism or keratoconus, you may benefit from regular or toric contact lenses, or eyeglasses. In severe case of corneal damage, a corneal transplant may be required.