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How A Vision Tester Works

By Marissa Velazquez


Vision tester is a small instrument commonly found in health centers. This one is used to particularly diagnose eye complications. It is after diagnosis that the health providers get to determine the correct remedy for particular complications. The machine occurs in varying sizes, depending on complexity.

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.

Some people who are found having the above two complications are usually given glasses. This is because there is no medication that has been identified for the two problems. The strength of the lens offered depends on the severity of the complication identified by the tester. Some people who do not want to use glasses may opt to use contact lenses. Others may also choose to have permanent solutions, among which is surgery and laser treatment.

Other more complex forms of treatment include those such as laser treatment as well as surgery. These methods are quite costly. They however are only recommended in case where the sight problems are too severe to be corrected using glasses. Some people may however just resort to use them because they offer a rather permanent solution. Some of the complications such as aches may just be treated using some gels and eye drops.

Individuals who have so far been beneficiaries of the use of this machine appreciate the services offered. The machine on the part of patients and the operator is very easy to use. This then means that both of them are not fatigued or disturbed while using the machine. It is also not very heavy and can be moved from one place to another, making it very reliable.

However, some people who live in abstract poverty may not afford to use this machine. This is because some health centers may charge high amounts of money for the facility. Some of the operators are also the kinds who have not been trained well. These ones thus may lead to faulty diagnosis which in turn leads to wrong medication. Such cases have resulted in consequences as severe as death.

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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