Contact Lenses, Advantages and Disadvantages
Contact lenses can be a quite typical manner in which patients decide to correct their vision. They have several advantages over glasses, but tend to create problems too.
Advantages include better vision because of correction on the
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Several problems can take place because of contact lens wear too, so care has to be taken up avoid these problems. Many doctors refer their patients to ophthalmolgists for evaluation and treatment of their lens related problems.
How can disposable lenses damage a persons vision?
Contacts could cause many problems in a persons vision, but only several commonly encountered diagnoses might cause severe problems. Giant papillary conjunctivitis, punctate keratopathy and ulceration would be the three most problematic issues.
Giant Papillary Conjunctivitis (GPC)
GPC occurs on account of overwear of disposable lenses, either a lot of hours daily, or too many days uninterruptedly. Symptoms include itching, inability to wear lenses all day long, and mucous discharge.
Overwear may also create a problem on top in the cornea, in which the top layer of cells are damaged. The eye doctor sees tiny pinpoint scratches about the cornea caused by decreased oxygen to people cells.
The most prospect of a threat to vision could be the corneal ulcer. In this case, bacteria penetrates the surface of the cornea, causing contamination that appears as a white spot. If untreated, this infection can penetrate and cause infection inside the eye.
How can we prevent contact lens problems?
The most critical thing for patients to do is control their contact lens wear. Although many lenses are created and approved for overnight wear for between 2 and four weeks, most eye doctors recommend nightly removal and cleaning. The single most common cause of contacts related problems is overwear, along with a large study showed that overnight wear is fourteen times more likely to cause ulcers than some other risk factor.
Are there safer choices to wearing disposable lenses?
Of course, glasses include the safest strategy to correct vision without running the potential risk of disposable lenses. Since glasses don’t touch the eyes, they can’t make trouble. On the other hand, since they are away from the eyes, the tend not to give vision which is as sharp as contacts. Rigid or hard lenses are best of all because they float on top from the eye, effectively smoothing out any rough spots, giving the most effective vision.
Recent studies also demonstrate that LASIK has less risks than disposable lenses, even though it is a surgery. It is much more common for contact lenses to cause infection, inflammation etc vs. LASIK.