Visit Your Naples Ophthalmologists for Contact Lenses
Contact lenses correct vision problems the same way eyeglasses do by modifying the direction of light to focus correctly on the retina. However, contact lens exams differ from traditional eye exams because your Naples ophthalmologists must not only determine the extent of your vision problem but must also measure the shape of your eyeball. The diameter and curvature of your cornea is evaluated using a kerometer, a diagnostic tool useful for measuring the severity of astigmatism. Additionally, Naples eye physicians may also use a slitlamp to examine your eye's cornea, retina and aqueous humor.
Corneal Topography
Your contact lens exam may also include a corneal topography procedure, which maps the curve of your cornea. Corneal topography is also used in planning LASIK, intraocular lens and cataract surgery.
Who are Good Candidates for Wearing Contact Lenses?
Contacts can help correct numerous vision issues such as near-sightedness, farsightedness, presbyopia (when bifocal or tri-focals are needed) and astigmatism. Following your contact lens exam, your Naples eye physicians will tell you whether your eyes are healthy enough to wear contact lens, write your prescription and answer any questions you have about wearing and taking care of contact lenses.
Presbyopia and Contact Lenses
If you are diagnosed with presbyopia, you may be prescribed monovision lenses that use the "better" eye for distance vision and the less capable eye for nearer vision. In other words, different lenses are fitted for each eye so that vision correction addresses unique vision measurements taken from each eye. Monovision corrective lenses work better for some people who have worn bifocals at one time and found them ineffective or difficult to get used to.
Contact Lens Prescription
A complete contact lens exam provides Naples ophthalmologists with the information necessary to prescribe correctly fitting and functioning contact lenses. Information obtained from a contact lens eye exam includes your corneal diameter, base curve radius, center thickness of the cornea and your precise refractive error, or diopter. Your diopter indicates how much your contact lenses must be able to bend light so that the light focuses on the retina and allows the retina to provide you with clear, crisp images.