20/20 Sight was established by Larry Tarrant O.D. He has been serving Grand Prairie since 1999, Forney since 2006, and the Lakewood area of Dallas since 2013.
All offices offer comprehensive eye care for every member of the family. They are also equipped with the latest technology in eye care and operate individual, in-house labs that allow patients to receive their lenses in record time. Our skilled optometrists, wide selection of products, expertly trained staff, and convenient ordering and payment options will make your visit the most pleasureable experience you have ever had in a “Doctor’s Office.”
We are happy to answer any and all questions you may have, so never hesitate to give us a call. We look forward to seeing you soon!
We accept certain insurance plans, so please contact us with your questions. Typically we accept most insurance from the following companies :
- Blue Cross
- Care Credit
- Davis Vision
Also accepting most Health Savings Accounts (HSA’s) as well as Flex Spending. Please contact us about your specific insurance, HSA, and Flex Spending situation.
How the Eye Works
Light rays enter the eye through a transparent layer of tissue, known as the cornea. The cornea bends light through a watery substance called the aqueous humor. As light continues on its pathway it passes through the dark, round opening in the center of the colored iris known as the pupil. The iris, the part of the eye that gives the eye its color, also changes the size of the pupil from very small to large in order to regulate the amount of light that is entering.
Light then passes through another structure, called the lens. The lens is attached to muscles which contract or relax in order to make adjustments which allows light to be focused for clarity. Once through the pupil and lens, light then passes through the larger posterior portion of the eye that is filled with a clear, jelly-like substance called the vitreous humor. Continuing through, light comes to the retina, the membrane that lines the back wall of the eye, containing photo- receptor (rod and cone) cells. These cells convert light to electrical impulses.
The cone cells (about 7 million in number) are in greatest concentration in the small, central part of the retina, called the macula. This area is responsible for producing sharp, detail vision and color vision. The rod cells (numbering about 100 million), in the peripheral retina, provide vision in dim light. Electrical impulses are sent through the optic nerve, the bundle of retinal fibers that exits the back of the eye, and transported to the brain where they are interpreted in the primary visual cortex and an image is perceived.
Importance of Eye Exams
Vision screenings that are performed by a school nurse or your employer are not the same as comprehensive eye exams. Eye doctors check for ocular and other diseases that have no early symptoms, but should nevertheless be treated as early as possible to avoid vision loss. It is recommended that healthy adults under 40 have an eye exam every 1-2 years, and those over 40 are urged to have an exam every year. The American Optometric Association recommends that chidren receive their first eye exam at 6 months of age, a second at 3 years of age, and another before beginning school. Children under the age of 18 should be seen once a year. Vision and ocular health can vary greatly from month to month as children grow and change.
A contact lens is a thin plastic lens that is fitted over the cornea of the eye to correct various vision defects. There are two main types of contact lenses prescribed today, both of which are described below:
- Gas Permeable Lenses
Gas permeable contact lenses are more rigid and smaller in diameter than are soft contact lenses. One of their chief advantages is breathability: Your cornea needs oxygen for optimal health and function. Gas permeable lenses allow more oxygen to pass through them than do soft lenses, so corneal irritation is less likely. Their disadvantage is that they’re initially less comfortable than soft lenses. Most people get used to them quickly, but if you stop wearing them for more than a few days, you’ll have to readapt. Gas permeable lenses can correct certain vision problems — such as refractive errors that require high spherical or cylindrical powers — more accurately than can soft lenses.
- Soft, Disposable Contact Lenses
Soft disposable contact lenses were designed to be a healthier and more convenient approach to contact lens wear. Their introduction revolutionized the way people wore contact lenses. The majority of today’s lenses are disposable because they are convenient and affordable. Throw them away daily, weekly, or monthly. Disposable or frequent replacement contact lenses are a healthy, time-saving option. Colored disposable contact lenses look great on light and dark eyes, whether you need vision correction or not. Silicone hydrogel contact lenses are a relatively new lens material that delivers high amounts of oxygen to your eyes, enabling 30-day continuous wear for some people. Please consult your optometrist for your particular wearing schedule and maintenance instructions.
Glasses are a device that compensate for defective vision or to protect the eyes from light, dust, and the like, consisting usually of two glass or plastic lenses set in a frame that includes a nosepiece for resting on the bridge of the nose and two sidepieces extending over or around the ears. Glasses are made to accommodate a specific visual or occupational need and require a written prescription from an optometrist.
LASIK is a surgical procedure intended to reduce a person’s dependency on glasses or contact lenses. LASIK stands for Laser-Assisted In Situ Keratomileusis and is a procedure that permanently changes the shape of the cornea, the clear covering of the front of the eye, using an excimer laser. A knife, called a microkeratome, is used to cut a flap in the cornea. A hinge is left at one end of this flap. The flap is folded back revealing the stroma, the middle section of the cornea. Pulses from a computer-controlled laser vaporize a portion of the stroma and the flap is replaced. LASIK treats nearsightedness, farsightedness and astigmatism. We do not provide LASIK surgery, but we offer consultations, referrals, as well as pre and post-op care.