Corrective lenses can do an excellent job of correcting many different refractive errors, from simple nearsightedness or farsightedness to more complex issues such as astigmatism and presbyopia. Better yet, these days there are a variety of contact lens options for those who find them a more practical choice than eyeglasses. Some people are surprised, however, to learn that they will need a contact lens exam in addition to the standard vision test if they want to pursue this type of vision correction. Our Dallas TX optometrist here at Optique (Dr. Orm or Dr. Zellers) can perform the necessary evaluations and help you choose the best contact lenses for your individual needs.
Contact Lens Exam
The first step toward any other kind of eye care is an eye exam. Vision testing is a routine part of any comprehensive eye exam, and one you should undergo regularly to make sure your eyesight hasn't changed for the worse. If you are indeed suffering from a refractive error, your optometrist will write a prescription for corrective lenses. This is all you need if you're just getting glasses -- but contacts require more data. That's because these lenses have to be custom fitted to your eye in exacting detail, not only to provide accurate vision correction but also to prevent eye discomfort or even injury. A device called a keratometer measures your basic corneal dimensions, while a technique called corneal topography digitally captures every tiny irregularity in the corneal contours (a must for correcting astigmatism). We also measure the size of your pupils and irises.
Different Types Of Contact Lenses
Underlying eye complications or general health issues may govern what kinds of contact lenses you should consider. If you have presbyopia, for instance, you'll need multifocal lenses instead of single-vision lenses. If you have astigmatism, you may need toric lenses. These lenses are constructed so that they are always aligned correctly on the eye, allowing them to correct for deformations in specific areas of the cornea. More severe refractive errors may require rigid gas permeable lenses instead of soft contacts. Dry eyes may only be comfortable and healthy when paired with lenses made of moisture-retaining hydrogel, while eyelids prone to irritation from proteins that accumulate on extended-wear lenses (an issue called giant papillary conjunctivitis) may do better with single-wear disposable contacts.
Last but not least, the contact lens exam gives your Dallas TX optometrist a chance to ask you about your lifestyle and activity preferences -- another important consideration when choosing contact lenses. If you're not interested in cleaning your lenses regularly, we may steer you toward disposable contacts -- or if you don't enjoy constantly removing and replacing your contacts, we may recommend extended-wear lenses. If you want to give yourself a whole new look, we can create colored contacts for you.
Schedule Your Contact Lens Exam
We're ready to administer your vision test and contact lens exam whenever you are. So call (214) 252-1800 today to schedule an appointment!