Keratoconus

This disorder-a progressive thinning of the cornea it is a common corneal dystrophy. It is more prevalent in teenagers and adults in their 20s. Keratoconus arises when the middle of the cornea thins and gradually bulges outward, forming a rounded cone shape. This abnormal curvature changes the cornea's refractive power, producing moderate to severe distortion (astigmatism) and blurriness (nearsightedness) of vision. Keratoconus may also cause swelling and a sight-impairing scarring of the tissue.

Studies indicate that keratoconus stems from one of several possible causes:

  • An inherited corneal abnormality. About seven percent of those with the condition have a family history of keratoconus.
  • An eye injury, i.e., excessive eye rubbing or wearing hard contact lenses for many years.
  • Certain eye diseases, such as retinitis pigmentosa, retinopathy of prematurity, and vernal keratoconjunctivitis.
  • Systemic diseases, such as Leber's congenital amaurosis, Ehlers-Danlos syndrome, Down syndrome, and osteogenesis imperfecta.

Keratoconus usually affects both eyes. At first, people can correct their vision with eyeglasses. But as the astigmatism worsens, they must rely on specially fitted contact lenses to reduce the distortion and provide better vision. Although finding a comfortable contact lens can be an extremely frustrating and difficult process, it is crucial because a poorly fitting lens could further damage the cornea and make wearing a contact lens intolerable.

In most cases, the cornea will stabilize after a few years without ever causing severe vision problems. But in about 10 to 20 percent of people with keratoconus, the cornea will eventually become too scarred or will not tolerate a contact lens. If either of these problems occur, a corneal transplant may be needed. This operation is successful in more than 90 percent of those with advanced keratoconus. Several studies have also reported that 80 percent or more of these patients have 20/40 vision or better after the operation.

Keratoconus
Are you paying hundreds of dollars for a pair of decent progressive lenses? Why not experience progressive lenses offered by Glasses Gallery that guaranteed visual comfort for FREE ! Once you try, you will never want to change to another pair , Learn more
We are confident that you will love your purchase from us, but if for any reason you decide not to keep the product, you are eligible for full purchase value store credit, an exchange or a refund towards your method of purchase. Learn More
Virtual Try on Guideline
Quick Start Guide
Order Precision RX Lenses
Upload Prescription
PD Measurement
How to Choose a Frame
Order Return
Order Tracking
Adjust your Glasses