Wednesday, 5 February 2014

What To Know About A Vision Tester

By Jayne Rutledge


Ophthalmologists, optometrists and opticians are all types of doctors who specialize in eye care. This professional, who are trained and knowledgeable in this field, might also be referred to as a vision tester. Many tests are available to assess health and function of the 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 can be used to detect any dysfunction in peripheral and central vision, which may be the result of medical conditions, such as brain tumors, stroke and glaucoma. This is done clinically by keeping the gaze of patients fixed while presenting various objects in places in 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.

Every test will be different and produce its own results. Some are used specifically to check for color blindness, while others might be more concerned with assessing ability to see far away and up close. There are also tests done to check eye health, making sure all of the parts look normal and work properly. Consulting with a doctor is the best way to find out which tests to take, what the results mean and how the results can be treated, if necessary.

It is important to take care of the eyes because humans only have one set. In the event of eye or vision loss, not much can be done to restore that for individuals. A vision tester may refer to a person or machine that is used to assess the health and function of the eyes. There are numerous eye exams that can be performed.




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