How does lasik correct vision




















Upcoming Webinars. NOV 15, NOV 16, NOV 17, Upcoming Virtual Events. DEC 01, DEC 07, JAN 25, FEB 23, You experience an allergic reaction because your body misinterprets a harmless substance as an invader. As a result, your immune system creates antibodies and triggers inflammation — usually in your airways, skin, sinuses, or digestive system — when it comes into contact with the allergen. There are a few common types of allergies, each with their own unique set of symptoms. If your body has an allergic reaction to a certain food or food group, your symptoms may include:.

You experience allergic rhinitis, commonly known as hay fever, when certain plants and their pollen trigger an allergic response in your body. The symptoms include:. The allergic reaction caused by an allergy to an animal is very similar to hay fever.

Symptoms can include:. First, Boat Club Medical Spa providers use in-office skin testing and advanced blood testing to perform a comprehensive scan of your body, finding even allergies that are commonly overlooked by less thorough screenings.

Then, they work with you to put a treatment plan in place. An obvious element of this treatment plan is to avoid the trigger whenever possible. That and taking over-the-counter antihistamines may be enough to control your symptoms. If not, they also offer immunotherapy. During this treatment, also known as allergy shots, your Boat Club Medical Spa provider injects you with a very low dose of the allergen. To alleviate your symptoms so you can enjoy your days allergy-free, call the office or book your appointment online.

Ask one of our Eye Care Experts, obligation free. LASIK eye surgery can help you correct refractive errors in vision such as nearsightedness myopia , farsightedness hyperopia , and astigmatism. The procedure uses a state-of-the-art laser to reshape your cornea so that it focuses light properly.

The end result is clearer, sharper vision. The IntraLase method uses a laser to produce a layer of tiny bubbles, which gently lift and separate the tissue to create a corneal flap, rather than traditional LASIK procedures which use a blade to create a corneal flap.

Once the flap is made and the cornea reshaped, the surgeon will move the flap back into place, where it resets in the cornea without the need for stitches. Eye Care Specialists was founded by Dr. Sometimes this change in vision is due to another eye problem, such as a cataract. Talk with your doctor about any vision changes.

Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission. This content does not have an English version.

This content does not have an Arabic version. LASIK surgery During LASIK eye surgery, an eye surgeon creates a flap in the cornea A — the transparent, dome-shaped surface of the eye that accounts for a large part of the eye's bending or refracting power.

Anatomy of the eye Open pop-up dialog box Close. Anatomy of the eye Your eye is a complex and compact structure measuring about 1 inch 2. Nearsightedness myopia Open pop-up dialog box Close. Nearsightedness myopia With normal vision, an image is sharply focused onto the retina. Farsightedness hyperopia Open pop-up dialog box Close. Farsightedness hyperopia With normal vision, an image is sharply focused onto the surface of the retina.

Request an Appointment at Mayo Clinic. Share on: Facebook Twitter. Show references Bower KS. Laser refractive surgery. Accessed Aug. Facts about myopia. National Eye Institute. Kim TI, et al. Refractive surgery. The Lancet. Yanoff M, et al. In: Ophthalmology. Elsevier; Food and Drug Administration. What should I expect before, during, and after surgery? Refractive laser surgery adult.

But most people still eventually need glasses for driving at night or reading as they get older. LASIK surgery has a good track record. Complications that result in a loss of vision are rare, and most people are satisfied with the results. Certain side effects, particularly dry eyes and temporary visual disturbances such as glare , are fairly common. But these usually clear up after a few weeks or months, and very few people consider them to be a long-term problem.

Your results depend on your refractive error and other factors. People with mild nearsightedness tend to have the most success with refractive surgery. People with a high degree of nearsightedness or farsightedness along with astigmatism have less-predictable results.

Read on to learn more about what to consider as you decide whether this surgery is right for you. There are several variations of laser refractive surgery. LASIK is the best known and most commonly performed. Many articles, including this one, will use the term "LASIK" to refer to all types of laser eye surgery. Typically, images are focused on the retina in the back of the eye. With nearsightedness, farsightedness or astigmatism, they end up being focused either in front of or behind the retina, resulting in blurred vision.

Traditionally, blurry vision is corrected by bending refracting light rays with glasses or contact lenses. But reshaping the cornea the dome-shaped transparent tissue at the front of your eye itself also can provide the necessary refraction and vision correction. Before a LASIK procedure, your eye surgeon will assess detailed measurements of your eye and assess the overall health of the eye.

You may be instructed to take a mild sedative medication just prior to the procedure. After you are lying comfortably on an operating table, eye-numbing drops will be administered. Then he or she will use a special type of cutting laser to precisely alter the curvature of your cornea. With each pulse of the laser beam, a tiny amount of corneal tissue is removed, allowing your eye surgeon to flatten the curve of your cornea or make it steeper. Most commonly, the surgeon creates a flap in the cornea and then raises it up before reshaping the cornea.

There are also variations in which a very thin flap is raised or no flap is used at all or no flap at all, is raised. Each technique has advantages and disadvantages. Individual eye surgeons may specialize in specific types of laser eye procedures.

The differences among them are generally minor, and none are clearly better than any others. Depending on your individual circumstances and preferences, you may consider:. Photorefractive keratectomy PRK.

With PRK , rather than forming a flap, the top surface epithelium is scraped away. This corneal abrasion takes three or four days to heal, resulting in moderate pain and blurred vision in the short term. It was thought that these drawbacks were outweighed by the theoretical advantage that PRK was safer for people who are more likely to be struck in the eye — for example, those involved in contact sports, law enforcement or the military.

Intraocular lenses.



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