The benefits of contact lenses can get from the best contact lenses which can permeate oxygen from environment to cornea. Have large optical zone and comfortable to wear.
Contact lens is an artificial device. Its front surface substitutes the anterior surface of cornea. Therefore, in addition to correction of refractive error. The irregularities if the front surface of cornea can also be corrected by the contact lenses.
Indication of use:
High myopia.
Hypermetropia
Unilateral aphakia
Astigmatism,
In glaucoma as vehicle for drug delivery
Can be used as occluder in the treatment of amblyopia in children who
can not tolerate conventional patch occlusion.
Advantages over Spectacles:
Contact lenses provide normal fields of vision.
Binocular vision can be provided when refractive error in one eye is
less and very high in other eye.
Rain and fog do not condense upon contact lenses
Cosmetically more acceptable by patients with thick glasses in high refractive errors.
Should not be used when:
The person is mentally retarded.
Has chronic conjunctivitis
Suffering from dry eye syndrome.
Complication:
Although any type of contact lens may lead to complications, they are more common with extended wear lenses.
It may lead to:
Allergic conjunctivitis.
Blurring of vision
Infection in eye
In case of any complication due to contact lens, immediately discontinue use and go for treatment.
Precautions:
Wash hands with soap before wearing the contact lenses tp avoid any infection.
Never wash contact lenses with water.
Clean the lenses with lens care solution.
Discard the contact lenses in condition.
Deposition of mucoproteins over contact lenses.
Calcium deposits over contact lenses. Nowadays, use of contact lenses has become a routine. Best contact lenses are those which can permeate oxygen from environment to cornea. Have large optical zone and comfortable to wear.
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