Family history
It may be more common when relatives have keratoconus.
Eye Conditions

The cornea is the clear, curved layer at the front of your eye. It helps focus light so you can see clearly.
With keratoconus, the cornea becomes thinner and, over time, can take on a more cone-like shape. That irregular shape bends light unevenly, so vision may look blurry or distorted.
It is often noticed in the teen years or early adulthood, although it progresses differently for each person.
Normal cornea
Cornea with keratoconus
Symptoms can vary from person to person. Not everyone experiences all of them.
Keratoconus is considered a multifactorial condition. These factors have been associated with it, but none of them is a definite cause on its own.
It may be more common when relatives have keratoconus.
Frequent, vigorous eye rubbing has been linked to keratoconus.
Allergies can increase itching and, with it, the habit of rubbing your eyes.
An association with some general health conditions has been described; your history is reviewed during the exam.
Diagnosis is based on a comprehensive eye exam. Depending on the case, it may include:
Each step is tailored to you; not everyone needs the same tests.
Options may vary depending on the shape of the cornea, how it changes over time and your visual needs.
In early stages, glasses may provide adequate vision for some people.
Some soft lens designs may be an option in certain cases.
Rigid lenses that hold their shape and can compensate for part of the corneal irregularity.
Larger-diameter lenses that vault over the cornea.
When appropriate, you are referred to other professionals to review other options. Dr. Belkis Perez, OD does not perform surgery.
Scleral lenses are larger-diameter rigid lenses. Instead of resting on the cornea, they rest on the white of the eye (the sclera) and vault over the cornea.
The space between the lens and the cornea is filled with fluid. The front of the lens provides a smooth optical surface, which may help some people with keratoconus see more clearly.
Whether they are right for you is determined in an individual evaluation, along with the appropriate fitting and follow-up care.
More About Scleral LensesEvery case of keratoconus is different. Dr. Belkis Perez, OD takes the time to understand how you see, what bothers you and what you need day to day before reviewing vision correction options.
If a specialty contact lens is considered, the fitting is personalized and includes follow-up care as appropriate for your case. When appropriate, referral to other eye care professionals is also considered.
General information only. It does not replace a professional exam; the right option is determined during a visit with Dr. Belkis Perez, OD.
Book your appointment with Dr. Belkis Perez, OD to review the best option for your eyes.
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