DEFINITION
Cataract is the loss of lens transparency. The lens is a transparent lens that we have behind the pupil and that helps us focus on objects clearly. For a variety of conditions, diseases or more frequently due to the passage of time, the lens may be losing its natural transparency and become opaque lens. So a cataract is more or less advanced depending on whether the decline is greater or lesser transparency. The greater the loss of lens transparency (or more advanced is the waterfall) the greater the decrease in vision.
CAUSES
* Advanced age
* Diabetes
* Infection or eye trauma
* Familial tendency
Cataracts are a normal part of aging. The greater the person, the greater the probability of occurrence and progression of cataracts. But there are times when the falls are at earlier ages, especially in people with certain diseases like diabetes and high myopia intraocular inflammation among others. Cataracts can also occur after ocular trauma or in families predisposed. Nearly three in four people over age 75 suffer from cataracts, most people with cataracts have them in both eyes. However, one eye may be worse than the other because each cataract develops at different rates.
SYMPTOMS
* Loss of vision
* Discomfort in bright light
* Loss of color shades
Usually cataracts are manifested by a slow, steady decline in vision, it appears cloudy, blurry, or as if looking through a veil, and not relieved by changing glasses. This decrease in vision is usually more pronounced in some circles of light, for example in the darkness and spotlights have problems driving and that light dazzled in bright sunlight or solar. Also you lose the tone of the colors.
DIAGNOSIS
A regular review of their view is all that is needed to find the falls. Your ophthalmologist will ask you to read a chart with letters to determine how is your hearing. Probably will put eye drops to enlarge your pupils (black circles in the middle of your eye). Doing this allows the doctor to see inside your eyes. Using a bright light, the doctor can see if the lenses are transparent, and may look for other problems on the inside of the eyes.
There are other tests that may be performed occasionally to see how much it affects the cataract in his eyes, and to have a baseline against which improvement after an intervention of cataract:
* Consideration of bright light.
* Consideration of perception of contrasts.
* Potential vision test.
* Microscopic examination of photography speculate.
Not everyone needs these four tests.
TREATMENT
* Surgical intervention
* With correct diagnosis
* When normal life is impaired by the lack of vision
The treatment of cataracts is primarily surgical. The cataract operation is the removal of the lens is opacified and its replacement with an artificial lens is placed on the same site as the original lens (intraocular lens), restoring the vision that was lost as a result of cataracts.
The decision to have cataract surgery for the patient, so the problem arises when we must take a decision on when?. So the first thing we need to know is whether the vision loss is due to cataracts, since no diminution of vision in an elderly person is caused by cataracts. Therefore the correct diagnosis by an ophthalmologist is the priority.
Once the diagnosis is certain we must consider is whether the vision loss caused by the cataract affects the quality of life of the individual, and prevent you from normal activities. In this case you should consider performing a surgical procedure.
Tags: blurry, Cataract, eye, high myopia, intraocular lens, pupil
