The thinned cornea and abnormalities on the surface of the cornea are symptoms of keratoconus. The cornea is the front of your eye's transparent outer layer. The cornea's middle layer, its thickest layer, is primarily composed of water and protein collagen. The cornea is made of collagen, which helps maintain its normal, rounded shape and makes it robust and flexible. Having a healthy cornea enables you to see clearly. The cornea thins and bulges into an atypical cone form in keratoconus, impairing vision.
In most cases, keratoconus starts after adolescence and worsens until the mid-30s. It is impossible to forecast whether or how quickly the disease will advance. Both eyes are typically affected by keratoconus, though one is usually more severely affected than the other.
Keratoconus still needs to be fully understood despite decades of research. Although the exact aetiology of keratoconus is unknown, it is thought that a propensity to the condition is present at birth. The loss of corneal collagen is a common finding in keratoconus, and this might be brought on by an imbalance in how corneal cells produce and destroy corneal tissue.
The following factors may boost the chance of acquiring keratoconus:
Many people with keratoconus are not aware they have the condition. The first sign of the condition is a slight blurring of vision or gradually declining vision that is difficult to repair.
Other keratoconus signs and symptoms include:
Your eye care specialist may do the following tests to identify keratoconus in addition to a thorough medical history and eye examination:
The course of keratoconus c3r surgery depends on the disease's stage and focuses on vision correction.
In the early phases of keratoconus c3r surgery, glasses are used to correct astigmatism and nearsightedness. Glasses can no longer provide patients with a clear vision as keratoconus develops and advances, necessitating the use of a contact lens, typically a hard contact lens.
Cross-linking the corneal collagen is a treatment option for progressive keratoconus. Vitamin B solution is applied to the eye during this one-time office procedure, after which the eye is exposed to ultraviolet light for no more than 30 minutes. New collagen linkages are formed due to the solution, restoring and maintaining some of the cornea's strength and shape.
The procedure can prevent vision from getting worse and, in certain situations, may even enhance vision, but it cannot completely restore the cornea's normal function. To enable the riboflavin to permeate the corneal tissue, the treatment can necessitate the removal of the cornea's thin outer layer (epithelium).
In April 2016, the FDA approved cross-linking as a keratoconus c3r surgery after clinical trials revealed that it prevented or mildly reversed corneal bulging after 3 to 12 months of the surgery.
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