Contact lens examinations include procedures to allow your optometrist to thoroughly investigate the health of your eyes and the quality of your vision. If you are a contact lens wearer, it is important to make sure that your lenses fit your eyes and correct your vision properly. Regular eye examinations, about once a year, allow your optometrist to monitor any changes to your vision before they become serious.
In addition to a comprehensive eye examination, a contact lens examination will involve measurements and an initial contact lens fitting. Here is what to expect:
- An in-depth examination of the surface of your eyes using a biomicroscope. The optometrist will be looking for any irregularities that may contraindicate the fitting of contact lenses.
- Measurements to determine the curvature of your corneas using a keratometer and/or corneal topographer. A corneal topographer provides extremely precise details about the surface characteristics of the cornea. This instrument is indispensable when lenses are fitted to an irregular shaped cornea.
- Pupil and iris size measurements.
- A tear film evaluation to determine the quality of your tear film layer. Although many modern contact lens materials are designed for dry eye, this condition can preclude certain patients from wearing lenses.
Slit-lamp examinations that give your optometrist a magnified view of the structures in your eyes in order to determine their health.