Complex Contact Lens Fitting

Reasons for Complex Contacts

Finding contact lenses that fit and wearing contact lenses in general can be made more challenging when these conditions affect your eyes:

Keratoconus: This is an uncommon condition that often requires specialized contact lenses to achieve maximum visual acuity. Many with keratoconus find that glasses cannot deliver adequate visual clarity. Keratoconus develops when the cornea becomes progressively thin and causes the cornea to bulge forward in a cone shape.

Corneal Injury: Irregular corneal shapes secondary to such things as injury, failed refractive surgery, or successful corneal transplant surgery often require specialized contact lenses to deliver good vision. Similar to keratoconus, glasses often are not sufficient.

Dry Eyes: When eyes become excessively dry, one may experience irritation, burning, redness and blurred vision. Contact lenses can exacerbate these conditions making it difficult to wear lenses comfortably.

Presbyopia: The aging of the lens inside the eye leads to a loss of one's natural focusing ability. This condition is known as presbyopia. It affects people aged 40 or older.

Solutions for more complex conditions

Wearing contacts is not impossible if someone has one of the above conditions. A thorough examination with an eye doctor and a discussion of one's visual and lifestyle needs is necessary to determine which design may be best to address his particular condition.

Rigid gas permeable lenses, daily replacement contacts, toric lens designs, multifocal lenses, and large diameter scleral rigid lenses are examples of options that can be considered to address the issues described above.

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