Scleral lens

Scleral lens is a type of contact lens that sits on the sclera and creates a tear-filled vault over the cornea. Scleral lenses are designed to treat a variety of eye conditions, many of which do not respond to other forms of treatment.

History

The first scleral lens was developed in the late 19th century and was made of glass. Modern scleral lenses are made of a highly oxygen permeable polymer. They are unique in their design and function, and in the way they interact with the eye and the eyelids.

Design

Scleral lenses are larger in diameter than typical contact lenses and are designed to rest on the sclera, the white part of the eye. The lens vaults over the cornea, and it is filled with saline solution before insertion to provide hydration to the cornea.

Uses

Scleral lenses are used to treat a variety of eye conditions, including keratoconus, dry eye syndrome, and presbyopia. They can also be used to correct refractive errors that cannot be corrected with standard contact lenses or glasses.

Benefits

Scleral lenses provide a number of benefits. They can provide improved vision for individuals with irregular corneas and can provide relief for individuals suffering from dry eye syndrome. Because they vault over the cornea and are filled with saline, they can also provide a more comfortable fit than traditional contact lenses.

Risks

While scleral lenses can provide many benefits, they are not without risks. Potential risks include infection, corneal swelling, and changes in vision. It is important for individuals wearing scleral lenses to follow their eye care professional's instructions for lens care and handling.

See also

• Contact lens
• Keratoconus
• Dry eye syndrome
• Presbyopia
• Refractive error

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Scleral lens

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  Scleral lens with visible vault, side view
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  Scleral lens worn on an eye
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  Scleral lens on removal plunger