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How A Vision Tester Works

By Marissa Velazquez


Vision tester refers to a machine used in the medical field. This facility has been used for such a long time. Many health facilities have them, though not all. It is most commonly found in health centers that mainly deal with treatment of the eyes. This equipment is usually operated by well trained personnel.

For instance, there are people who can only see objects which are at a close range and not those far away. Such people are termed as being myopic. This problem results from defective formation of an image of an object in vision. Instead of an image being formed on the retina, distant images in this case are formed in front of the retina. This thus results in blurred vision, resulting in the necessity of aids in vision or some form of medication.

Other people may have the capacity to see objects which are distant from them, but not those placed very close to them. It this case, the image of the close objects is also poorly focused. Thus, their images are formed behind the retina rather than on the retina. These people too need aids in order to view the images the way they are supposed to be. This problem however is not as prevalent as the short sightedness.

Remedy is determined by the nature of the problem, as well as affordability. The most commonly used and affordable remedy is glasses. These glasses usually are made using different lenses. These lenses differ in terms of the magnification strength. The stronger the lens, the more expensive it is at the health centers providing it. This solution has been mostly applied in solving problems of short sight and long sight.

Some people may however not be inclined to using glasses. These people if suffering from long or short sight may be forced to select more expensive options. These options include those such as laser treatment or surgery, which require more experienced attendants in the medical field. Other patients who just have got eye pains may be given eye drops. These ones contain chemicals which rectify any problem after a period of time.

There are merits associated with the use of this machine in detecting eye complications. For one, the results are usually very precise. This is because it can identify the various levels of severity of a given condition. The equipment is also readily available and thus can be easily obtained by all health centers interested in providing this facility to patients. Operating it is also simple.

However, there also are some demerits associated with it. In order for patients to access it, they have to visit a heath center. Those without the means of getting to the health center may thus miss out on the opportunity of receiving treatment using this equipment. Some medical practitioners may lead to wrong diagnosis if they do not know to handle it.

Vision tester has proven highly instrumental in many places. More health facility providers are now purchasing it for use in their various clinics. Training of the operators is also being conducted intensively to ensure correct diagnosis of complications is done.




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