The vast majority of people requiring vision correction can wear contact lenses without any problems. New materials and lens care technologies have made today's contacts more comfortable, safer and easier to wear. Consider the questions and answers below to help assess whether they're a choice you should consider.
After a thorough eye examination, your suitability for contact lenses and the specific contact lens option that best meets your requirements will be determined.
Contact lenses require getting used to as soft lens wearers typically adjust to their lenses within a week and rigid lenses generally require an extended adjustment period.
Except for some disposable varieties, almost all lenses require regular cleaning and disinfection. This process, although requiring only a few minutes, is more than some people want to undertake.
Some types of lenses increase your eyes' sensitivity to light.
For those involved in sports and recreational activities, contact lenses offer many advantages.
Looking sideways through the lenses of glasses leads to prismatic effects because you are not looking through their centers. Your eyes have to coordinate differently to cope with this. This does not happen with contact lenses because you always look through the centers of the lenses as they move with your eye movements.
Your occupation and work environment should also be taken into consideration. People whose work requires good peripheral vision may want to consider contacts. Those who work in dusty environments or where chemicals are in heavy use are likely to find spectacles more comfortable.
Do you like the way glasses feel? Do you like how you look in them? No longer is it really necessary to choose between either contacts or glasses. Some of today's contact lenses are so easy to wear that you can use them intermittently, for special occasions, fashion, or while playing sports.
New single-use, one-day disposable lenses are comfortable and do not require cleaning. They may be easily interchanged with glasses.
Contact lenses are designed to rest on the cornea, the clear outer surface of the eye. They're held in place by adhering to the tear film that covers the front of the eye. Also by pressure from the eyelids.
As the eyelid blinks, it glides over the surface of the contact lens and causes it to move slightly. This movement allows the tears to provide necessary lubrication to the cornea and helps flush away debris between the cornea and the contact lens.
Contact lenses are optical medical devices, primarily used to correct nearsightedness, farsightedness, astigmatism and presbyopia. In these conditions, light is not focused correctly on the retina, the layer of nerve endings in the back of the eye that converts light to electrochemical impulses. When light is not focused precisely on the retina, the result is blurred or imperfect vision.
When in place on the cornea, the contact lens functions as the initial optical element of the eye. The optics of the contact lens combine with the optics of the eye to focus light on the retina properly. The result is a "clear vision."
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