Contact Lenses | |
| Contact lenses are made of plastic and consist of a thin disc which fits gently on the eye and is in contact with the cornea of the eye. The original contact lenses were small and hard with a degree of rigidity which is not present in the newer soft lenses which are now becoming more popular. Hard contact lenses are less expensive, easier to care for and give slightly better vision. the softer lenses are easier to get used to and are more comfortable to wear.They are called hydrophilic lenses because they absorb water which keeps them soft and comfortable. they are bigger and cover more of the eye than the hard lenses. They are more secure and more suitable for sport. Soft lenses are harder to handle and keep clean. Being soft they can be damaged more easily than hard lenses and they usually do not last as long. There are some medical eye problems which prevent the use of contact lenses. Whilst bifocal contact lenses are available, ordinary contact lenses which are excellent for distant vision, might have to be combined with reading glasses for closer vision. Your doctor can refer you to an eye specialist who will examine your eyes and prescribe contact lenses should they be suitable and necessary for your eye problems. Once contact lenses are prescribed, it is necessary in the early stages to wear them for a short time each day. Gradually the wearing time can increase and soon they can be comfortably worn, generally for a full day. Contact lenses should never be worn at night. A new special type of soft lens has recently been developed which may in certain circumstances be left in for an extended period of time. Eventually it may be that these long wearing lenses will be suitable for all but at present I repeat, contact lenses should never be worn at night. The cleaning of contact lenses is important. The optometrist who supplies your lenses will give you strict instructions as to how you apply and clean them. If the cleaning instructions are not followed rigidly then the complications of eye irritation and infection will occur. You should consult your doctor should the eye become inflamed and sore. People who work in a dry or dusty atmosphere may find it hard to wear contact lenses. Those who suffer from abnormally dry or moist eyes also have difficulties with contact lenses. Contact lenses will correct many visual problems, but not all. While most forms of astigmation can be corrected by contact lenses, very pronounced astigmation can be difficult to correct and ordinary glasses may have to be prescribed. Contact lenses should not be worn whilst swimming. Eye make-up can be worn but should be applied carefully. Don’t use lash lengthening mascara. Be careful when using hair spray. Close your eyes whilst applying and keep them closed until the spray has completely settled on your hair. |
|
Another IRG Site
©Copyright 1997 - 2013 MedicalOnline.com.au |