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.
Different equipment and techniques are employed for these basic tests, which are usually done through external examination. The very basic exams involve checking of pupil function, extraocular muscle motility and visual acuity. The process is applied by doctors in order to detect blindness, tumors and other potential eye problems. Most insurance providers will offer some portion of coverage for these tests. Prices will range for the test, as well as 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 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.
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.
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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