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It changes the shape of the cornea, which changes the focal length. Both the cornea and the lens act together (like a compound camera lens) to focus the image on the retina.
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What is lazer eye surgery?
Many people have heard of LASIK eye surgery but do not understand anything about it other than it is a medical procedure that can correct your vision. LASIK is a much newer treatment for correcting vision than glasses and contact lenses. It also cannot be reversed. Both of these factors scare potential patients from learning anything further about it.What is LASIK?LASIK is an acronym for laser in situ keratomileusis or laser assisted keratomileusis. This name is a fancy way of saying that a laser is used to assist in reshaping the cornea without touching any other part of the eye. LASIK can be used to correct nearsightedness, farsightedness and astigmatism. While ophthalmologists have been performing procedures to reshape the cornea for over 50 years, LASIK is a much newer procedure. The first clinical trials in the United States took place in 1995.Who Can Benefit from LASIK?LASIK can benefit almost anyone with nearsightedness, farsightedness or astigmatism. LASIK patients should strongly desire to be rid of their glasses and/or contact lenses. Some preexisting conditions will keep doctors from performing LASIK surgery on some patients. Because of this, a consultation and physical examination may be necessary. No list of conditions exists that prevents the surgery from being performed. It is up to the individual doctor and other health factors of the patient. If LASIK cannot be performed, one type of corneal surgery may be suggested by the doctor.What Are The Results of LASIK?LASIK improves the vision of over 50 percent of patients to 20/20 or better. However, no guarantees exist that the surgery will allow patients to see without the aid of corrective lenses. The minimum vision to drive without corrective lenses in most states is 20/40, and LASIK achieves this result in more than 90 percent of patients. This still leaves nearly 10 percent who must wear corrective lenses while driving even after the surgery. For patients over the age of 40, success rates are lower. Most people over 40 who undergo the LASIK procedure still wear corrective lenses in some situations.After LASIKAfter the LASIK surgery, recovery times may vary. Some patients have the surgery on only one eye at a time. This requires the wearing a single corrective lens until the time of the second surgery. While it is more convenient to have both eyes done at the same session, some doctors prefer to see how one eye responds before performing in on the other. After each operation, patients usually report being able to see clearly within one to two days. As long as the patient can see adequately, all of the patient's usual activities can be immediately resumed.
What do microscopes do and why are they useful?
They magnify extremely small objects, many too small for the eye to see otherwise. They can be used to examine crystals, cells, bacteria, and computer chips, and can aid in delicate surgery.
Does public aid pay for any cosmectic surgery?
Does public aid pay for breast reductions?
Is there any way to fix your hearing?
ear surgery or hearing aid
What is First aid for appendicitis?
surgery. and after wards a lot of rest.
Why were numbers created?
To count objects and perform mathematical problems which would aid our knowledge base as human beings. We would be able to solve complex trigonometry problems as well advanced calculus issues.
Does insurance cover plastic surgery?
Generally it is not. If plastic surgery is required to do something to help aid a ailment then it might be covered. However, for cosmetic purposes, Plastic Surgery is not covered by your insurance.
What is the purpose of vitrectomy surgery?
A vitrectomy is a surgery performed on the eye. This surgery removes the gel of the eye known as the vitreous humor. It is used to aid in the treatment of eye conditions such as vitreous floaters and retinal detachment.
Why is oxygen important to human body?
Oxygen is important to human body because it aid in breathing
What over the counter pain medicine with sleep aid can you take the night before surgery?
You should never take any medications before a surgery without checking with your doctor
How human can adapt to limited hearing?
From the use of a hearing aid.
What are the aids to the human eye?
There are quite a few aids to the human eye such as contacts. Another aid to the human eye is a set of glasses.
