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And in a Div

samedi 15 février 2014

Basics Regarding A Vision Tester

By Jayne Rutledge


Opticians, optometrists and ophthalmologists are different kinds of eye doctors. The professional that are knowledgeable and trained in this field of health care might also be known as a vision tester. The term may also be applied when referring to a general eye exam or visual field test. Numerous tests of these kinds can be done to check the function and health of eyes.

An eye exam refers specifically to a series of tests that are performed by an orthoptist, optometrist or ophthalmologist to assess the vision of an individual and his or her ability to discern and focus on objects. In this process, other exams and tests are performed on the eyes. It is recommended by officials in the health care field that people have periodic exams done as routine care, especially since most eye diseases show or produce no symptoms.

Many different techniques and pieces of equipment are used in basic examinations, which are generally external. At a minimum, tests are done on pupil function, extraocular muscle motility and visual acuity. The process itself can help doctors detect treatable eye-blinding diseases, tumors or other problems in the brain, or ocular manifestations of disease. Many insurance companies cover routine exams. Prices for these tests, as well as contacts or glasses will vary.

Visual field tests are exams that are employed to identify any dysfunction present in central and peripheral vision. Usually these problems are the result of glaucoma, stroke, brain tumors or other serious medical conditions. The test itself is done clinically. Patients are asked to fix their gaze on a spot while objects are placed in different areas of their visual field.

Generally, simple equipment is employed during this process, for instance: Amsler grids, tangent screen tests. However, dedicated machinery may be used and if so, the process is then called perimeter. Other names for this kind of exam include Automated perimetry exam, Humphrey field exam, perimetry, Goldmann visual field exam and Tangent screen exam. A test of this sort may be administered by a technician, with aid from a machine or solely by an automated machine.

A lot of different eye exams exist. In fact, they can be a requirement when it comes to applying for a specific job or getting a license to drive. There are machines and doctors that both serve as vision testers.

Each test has its own purpose and will produce different results. Some may be used solely to check for color blindness and others might be focused on accessing vision close up and far away. There are even tests specifically designed to assess health of the eyes. A doctor consultation is the best way to find out what exams to take, what the results mean, and the steps to take based on those results.

It is crucial that human beings take care of their eyes, as they are only given one set. If there is vision or eye loss, not a lot can be done to restore it back to normal. A vision tester might refer to a machine or person that is employed for the purpose of assessing function and health of eyes. There are several eye exams that can be taken.




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