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.

Eye exam refers more specifically to the collection of tests that are done by an optometrist, ophthalmologist or orthoptist in order to check the vision of a person, as well as his or her focus and recognition of objects. During this process, other tests and exams may be given. It is suggested by health care professionals that people have these exams done routinely as part of their health care routine, especially because many eye diseases are known for be asymptomatic.

There are a variety of techniques and different kinds of equipment used when it comes to basic exams, which are often done externally only. The bare minimum that is done during these exams is a check of visual acuity, extraocular muscle motility and pupil function. The process is used by doctors for detection of blinding diseases, brain tumors and other problems with the brain, or other ocular manifestations of eye diseases. Many insurance providers will cover a portion of the cost for these exams. Prices will vary, as do the cost of glasses, contacts or other treatments.

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.

Simple equipment such as tangent screen tests or Amsler grids are often used in this process, but dedicated machinery might also be employed. If dedicated machinery is used during a field test, the test is referred to as a perimeter. Other names for this exam: perimetry, Automated perimetry exam, Tangent screen exam, Humphrey field exam or Goldmann visual field exam. A field test may be carried out directly by a technician, with help from a machine or entirely by a machine that is automated.

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.

Human beings should take care of their eyes, at they only naturally have one. If there is eye loss or vision loss, not much can be done in terms of restoration. A vision tester is the term that may be applied to the machine or professional that checks the overall health and function of eyes. Numerous eye exams can be administered.




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