Scleral Contact Lenses

If you are aware and informed that you cannot wear contact lenses because of an irregular cornea or other problems like dry eyes, you may think to get a second opinion and ask your eye doctor about what is scleral contact lenses.

Scleral lenses are large-diameter gas permeable semi soft contact lenses specially designed to fit over the entire corneal surface and rest on the white part of the eye known as the sclera. These lenses fairly manage corneal irregularities like Keratoconus and ocular surface abnormalities which act as a fluid reservoir to provide comfort for people with severe dry eyes who otherwise could not tolerate contact lens wear. In doing so, scleral lenses functionally replace the irregular cornea with a perfectly smooth optical surface.

Different Type of Scleral Contact Lenses

Scleral contact lenses are noticeably larger than standard gas permeable contacts with the smallest diameter available approximately 14.5 mm, and the largest can be up to 25 mm. The size of the lens used often is chosen on basis of the degree of complexity of the condition. (image comparison)

During your scleral contact lens fitting and exam, your eye care professional or scleral lens specialist will determine the best scleral lens type and size for your specific condition and needs.

Keratoconus Scleral Lenses

Optometrists and ophthalmologists recommend scleral contact lenses for a variety of challenging eye conditions, one of the most common being keratoconus.

In cases of early keratoconus, a standard gas permeable lens can be an option. However, sometimes the lens does not center properly on the eye or moves excessively with blinks and causes discomfort, switching to a large-diameter scleral contact lens may solve the problem.

Because the design of scleral lenses is to vault the corneal surface and rest on the sclera, these lenses often are more comfortable for a person with keratoconus.

Scleral Contact Lenses for Other Abnormalities

Scleral contact lenses are a good option for eyes that have undergone a cornea transplant, and for people with severe dry eyes that might need a large tear reservoir, often gets fitted with larger scleral lenses, as they have more capacity to hold fluid or bridge large changes in corneal curvature. Severe dry eyes caused by conditions such as Sjogren’s syndrome, graft-versus-host disease (GVHD), and Stevens-Johnson syndrome.

What does the Scleral Lens Cost in India?

Scleral lenses are custom-made to the exact specifications prescribed by your eye doctor when they perform all the tests and fitting, to provide the best possible vision, eye health, and comfort.

For these reasons, professional fees associated with fitting scleral lenses and lens replacement costs are higher for scleral lenses than other contact lenses and vary with different brands.

Frequently asked Questions ?

Are Scleral Lenses safe for the eyes ?
Yes, the material of the scleral lens is usually FDA approved and it doesn’t harm or alter the functions of any tissue of the eyes hence its safe to wear.

For how long can a Scleral Lens be in the eye ?
Scleral lens can be comfortably worn till 9 to 12 hours of the day.

Can you sleep in Scleral Contact Lenses ?
No, you cannot sleep with scleral lenses on. Sleeping in lenses reduces oxygen transmission to the eye. This can cause swelling of the cornea and the abnormal growth of blood vessels into the cornea.

Have you experienced Scleral Lens fogging ?
Foggy or cloudy vision is often attributed to two causes. First, there may be mucous or debris trapped between the lens and the cornea. This can occur when the lens does not align properly to the eye.So, you can remove the lens, wash it again and reinsert it. Second, the front surface of the lens may not be wetting well. There are multiple reasons for this including poor tear film chemistry, improper cleaning, or lens surface breakdown. On rare occasions, foggy vision can also occur when the cornea becomes edematous (swollen). If your vision is still foggy after removing the lens, please inform your eye care practitioner. It is strongly recommended that any foggy or cloudy vision should get conveyed to your eye care practitioner as soon as possible.

How long do Scleral Lenses last for ?
If cared for properly, most lenses last at least one year.
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