Contact Lenses, Advantages and Disadvantages

Contact lenses are a quite typical method in which patients decide to correct their vision. They have several positive aspects over glasses, but sometimes cause problems too.
Advantages include better vision as a result of correction on the outside of the eye, and finish field of vision.
Several problems can take place due to lens wear too, so care must be taken to avoid these complaints. Many doctors refer their patients to ophthalmolgists for evaluation and management of their lens related problems.
How can lenses damage the eye?
Contacts can cause many problems in the eye, but only a few commonly encountered diagnoses may cause severe problems. Giant papillary conjunctivitis, punctate keratopathy and ulceration will be the three most problematic issues.
Giant Papillary Conjunctivitis (GPC)
GPC occurs on account of overwear of
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contact lenses, either too many hours every day, or too many days back to back. Symptoms include itching, inability to wear lenses all day long, and mucous discharge.
Punctate Keratopathy
Overwear may also result in a problem on top of the cornea, where the top layer of cells are damaged. The eye doctor sees tiny pinpoint scratches about the cornea due to decreased oxygen to people cells.
The most potential for a threat to vision is the corneal ulcer. In this case, bacteria penetrates the surface with the cornea, causing disease that seems as a white spot. If untreated, this infection can penetrate and cause infection inside a persons vision.
How are we able to prevent contact lens problems?
The most important thing for patients to perform is control their contact lens wear. Although many lenses are designed and approved for overnight wear for between 2 and a month, most eye doctors recommend nightly removal and cleaning. The single most frequent source of contacts related problems is overwear, along with a large study showed that overnight wear is fourteen times prone to cause ulcers than another risk factor.
Are there safer choices to wearing disposable lenses?
Of course, glasses include the safest approach to correct vision without running the potential risk of disposable lenses. Since glasses don’t touch the eye area, they won’t cause problems. On the other hand, since they are away from the eyes, the usually do not give vision that is as sharp as disposable lenses. Rigid or hard disposable lenses are better yet simply because they float at first glance in the eye, effectively smoothing out any rough spots, giving the most effective vision.
Recent studies also show that LASIK has less risks than contact lenses, this specific a surgery. It is much more common for contacts to cause infection, inflammation etc vs. LASIK.