Keratoconus

What is Keratoconus?

Keratoconus, often referred to as "KC," is a non-inflammatory eye condition in which the typically round dome-shaped cornea progressively thins and weakens, causing the development of a cone-like bulge and optical irregularity of the cornea. This causes "static" in your vision and can result in significant visual impairment. 


Symptoms


Keratoconus typically first appears in individuals who are in their late teens or early 20s, and may progress for 10 to 20 years and then slow or stabilize. Each eye may be affected differently. In the early stages of keratoconus, people might experience:
 

  • Slight blurring of vision

  • Distortion of vision

  • Increased sensitivity to light


The cornea is responsible for focusing most of the light that comes into the eye. Therefore, abnormalities of the cornea, such as keratoconus, can have a major impact on how an individual sees the world, making simple tasks such as driving a car or reading a book very difficult.

In keratoconus care, early detection is critical because the sooner they identify the signs and symptoms, the sooner they can refer you for treatment that can slow or halt disease progression to help preserve your vision.

 

Keratoconus

  • Can result in significant vision loss

  • May lead to corneal transplant in severe cases

  • Affects both males and females

  • Affects all ethnicities 

  • 10% of people with KC have affected relatives

  • People with Down Syndrome are 20 times more likely to be affected.

 


What Is iLink™ Corneal Cross-Linking?


The American Academy of Opthalmology Corneal Ecstasia Preferred Practice Pattern recommends prompt referral of patients who have been diagnosed with progressive keratoconus by their optometrist to a trusted opthalmologist who can perform corneal cross-linking. iLink™ corneal cross-linking is a minimally invasive outpatient procedure that combines the use of ultraviolet light and specially formulated eye drops to stiffen and strengthen corneas that have been weakened by disease or refractive surgery. Cross-linking is considered the standard of care around the world for progressive keratoconus and corneal ecstasia following refractive surgery.



Is iLink™ Covered By Insurance?

The medical neccessity of iLink™ has become widely recognized. As a result,  commerical insurance coverage for iLink™ is now over 95% in the United States for covered lives. Only iLink™ is approved by the FDA and is covered by insurance. Typically, non-FDA-approved procedures are not covered by insurance and have not been proven safe and effective.



Corneal Cross-Linking

  • Creates new corneal collagen cross-links

  • Results in a shortening and thickening of the collagen fibrils

  • Leads to the stiffening of the cornea



Riboflavin

Under the conditions used for iLink™ corneal cross-linking, specially formulated pharmaceutical-strength riboflavin eye drops called Photrexa® (riboflavin 5-phosphate opthalmic solution) and Photrexa Viscous (riboflavin 5- phosphate in 20% dextran opthalmic solution) help enable the cross-linking reaction.



Ultraviolet Light (UV)

iLink™ corneal cross-linking applies an artifical source of UV light from a machine called the KXL® System once the cornea has been soaked in the Photrexa® and Photrexa® Viscous eye drops. This process works to stiffen the cornea by increasing the number of molecular bonds, or cross-links, in the collagen.



Combining Riboflavin and UV Light

Using Photrexa® and Photrexa® Viscous riboflavin eye drops, combined with ultraviolet light from the KXL® system, the iLink™ procedure stiffens and strengthens the cornea to slow or halt progressive keratoconus.



Is Cross-Linking Right For Me?

Patients who have been diagnosed with progressive keratoconus or corneal ectasia following refractive surgery should be promptly referred to an pothalmologist who can perform corneal cross-linking. Our practice partners with an opthalmologist who performs iLink™ corneal cross-linking. This ensures that you can be confident that you are recieving the only FDA-approved cross-linking procedure. Speak with your doctor about the risks and beneits of iLink™ to determine if it may be right for you.

The goal of iLink™ is to slow or halt the progression of keratoconus to help preserve patients' vision. Typically, within 1 or 2 months after an iLink™ procedure, patients will return to their optometrist for ongoing monitoring and overall vision care. 

For more information about the iLink™ procedure for the treatment of keratoconus and corneal ectasia following refractive surgery, visit www.livingwithkeratoconus.com
 


Why iLink™?

Not all cornea cross-linking procedures are the same. Only iLink™ is approved by the FDA for the treatment of progressive keratoconus and backed by robust clinical studies. Other unapproved cross-linking procedures have not been rigorously studied and are not supported by the same standards of clinical efficacy and safety. Additionally, non-FDA-approved cross-linking procedures may be associated with greater out-of-pocket costs for patients.



Photrexa® Products and KXL® System Photos

Using Photrexa® Viscous, Photrexa® , and the KXL® System, the iLink™ corneal cross-linking procedure from Glaukos is the only FDA-approved therapeutic treatment for patients with progressive keratoconus and corneal ectasia following refractive surgery.



Indications

 

Photrexa® Viscous (riboflavin 5-phosphate in 20% dextran opthalmic solution) and Photrexa® (riboflavin 5-phosphate opthalmic solution) are indicated for use with the KXL® System in corneal collagen cross-linking for the treatment of progressive keratoconus and corneal ectasia following refractive surgery.

Corneal collagen cross-linking should not bve performed on pregnant women.

 


Important Safety Information

Ulcerative keratitis can occur. Patients should be monitored for resolution of epithelial defects.

The most common ocular adverse reaction was corneal opacity(haze). Other ocular side effects include punctate keratitis, corneal striae, dry eye, corneal epithelium defect, eye pain, light sensitivity, reduced visual acuity, and blurred vision. 

These are not all of the side effects of the corneal collagen cross-linking treatment. For more information, go to www.livingwithkeratoconus.com to obtain the FDA-approved product labeling.

You are encouraged to report all side effects to the FDA. Visit www.fda.gov/safety/medwatch, or call 1-800-FDA-1088.

 

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