There are a multitude of vision problems that plague almost every other human being over the course of their lives. The most common of these is blurred vision, which can be a result of either farsightedness or nearsightedness. Other forms of vision problems can be halo vision (or glare vision, which is basically bright blur of light surrounding especially bright objects or light sources) and spotted vision (dark "holes" in the vision in which nothing can be seen).
The causes behind blurred vision i.e. nearsightedness and farsightedness are mostly results of refractive errors within the eyeball. Astigmatism and presbyopia are other vision problems that can arise due to refractive errors in the eyeball.
Nearsightedness or astigmatism occurs when objects up close are visible quite clearly, whereas further off objects are blurred to the eye. The range beyond which the images start appearing blurry depends on the shape of the person's eyeball and other factors. However in the case of farsightedness or hyperopia, far off objects are easier to see than the nearer things.
Astigmatism occurs when the light isn't focused evenly on the retina, causing for images to appear blurry and stretched out. Presbyopia occurs in aging people, where the ability to focus vision on objects close by becomes difficult and slowly impossible.
All these and many other major vision problems can be diagnosed and treated with proper eye tests. That's why it is extremely important to go for eye tests at least once every year. Eye tests are also mandatory in case of any eye related problems, like itching, watering, redness, pain, dryness, and blurring of vision. Sometimes these eye-related problems can be an early indicator to more severe health issues, so it doesn't hurt to get it checked out early on.
An early detection of vision problems can help you in getting proper corrective visual aide like spectacles or contact lenses. With the regular use of spectacles from as soon as the vision problems start, the situation can be brought under control, and definitely postpone, if not, pause on the problems getting worse.
Contact lenses are another type of corrective visual aide which helps arrest the increasing or decreasing refractive power of the eye. Under an ideal situation, the power will be either negligible or zero.
Lasik Surgery can also be performed for correcting eye shape and the refractive power of the eye. However, as is with any surgery, there are some surgical risks involved in this process. Also it might prove to be more expensive than spectacle frames or contact lenses. But since it is a onetime expense, it might prove to be more effective in the long run with people with really poor eye sight.
Vision Express has the India?s most comprehensive 6 Step Free Eye Test offering the most accurate prescription. You can Book Free Eye Test by contacting us or through online appointment by visiting our website!. Available in Karnataka, Tamilnadu, Kerala, Delhi, Maharashtra, Gujarath and Rajasthan.
Source : articlesbase.com
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