Contact lenses are medical devices, so you need a contact lens prescription in order to buy them, and your eye doctor is required to make sure that your vision examination for your contact lens prescription involves finding the right fit for your lenses.
- Just as one shoe size doesn’t fit all, one contact lens size doesn’t fit all.
- If the curvature of a contact lens is too flat or too steep for your eye’s shape, you could experience discomfort or even eye damage.
- In addition to the fit of the contact lens Dr. David Roth or Dr. Ashley Roth will check on the health of your cornea to ensure there are no dangerous contact lens complications and that you can continue to wear your contacts as directed.
- The Contact Lens exam fit and follow up fee includes your contact lens exam/fitting, contact lens insertion and removal training (if necessary), a free trial pair of contacts (as many as it takes to find the right one) and up to 3 follow up visits in a period of 90 days after your original exam.
CONTACT LENS EXAM
What to expect:
– An instrument called a keratometer will be used to measure the curvature of your eye’s cornea (clear front surface).These measurements help your eye doctor choose the proper curve and size for your contact lenses.
– Because the keratometer measures only a small, limited section of the cornea, additional computerized measurements of your cornea (corneal topography) may be performed. Corneal topography provides extremely precise details about surface characteristics of the entire cornea.
Tear film evaluation
– While there are several methods for testing dry eye the most common is applying a flourescein dye to determine how long the tears stay on the eye before evaporating.
Evaluation of your eye’s surface and contact lens fit
– The health of your cornea will be evaluated using a biomicroscope (slit lamp). This lighted instrument provides a highly magnified view of the cornea and other tissues to enable your eye doctor to evaluate the health of the front of your eyes and detect any changes caused by contact lens wear.
– The biomicroscope also is used to evaluate the fit of a trial contact lens, because it enables your doctor to observe the alignment and movement of the lens as it rests on the surface of your eye.
– When trial lenses are used, you typically will need to wear them a few minutes so that initial tearing of the eye stops and the lenses stabilize.
Follow Up Visits
– In follow-up visits, your eye doctor may stain your eye with fluorescein to check for defects and make sure your contact lenses are not damaging your eye’s surface.
– After finding contact lenses that fit properly, are comfortable for you, and provide good vision, your eye doctor can write your contact lens prescription. This prescription will designate contact lens power, a shape matching the curvature of your eye (base curve), and diameter.
– Usually, it takes 1-2 follow-up visits to complete an uncomplicated new contact lens fitting. After that, you should have annual contact lens exams so your eye doctor can monitor the health of your eyes. In some cases, you may need more frequent exams or additional follow-up visits.