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Saturday, March 8, 2014

What To Know About 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.

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 refers to exams that are given to check for dysfunction in peripheral and central vision. Typically issues of this kind are the result of brain tumors, stroke, glaucoma or other serious medical ailments. The test is performed clinically, and patients are told to fix the gaze on a specified spot while other objects are placed in other areas of their field of vision.

Simple equipment is usually used during this process. Still, dedicated machinery might be applied and when this is done, the test is known as a perimeter. This exam might also be known as a perimetry, Automated perimetry exam, Tangent screen exam, Goldmann visual field exam and Humphrey field exam. A test of this kind may be given by a technician, a technician with help from a machine, or just a machine.

There are several other types of eye exams that are performed. In fact, these may be required in certain instances, for example: before receiving a driving license or being considered eligible for a particular job in which good vision is essential. There are many machines and doctors that serve as the vision tester for such screenings.

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 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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