Wed. Aug 21st, 2019

Different Types of Eye Test

In our modern society it seems that most people struggle just to keep up with a fast paced world. Between our jobs, children, household upkeep and day to day issues it is difficult to find the time to take care of our health as we should. When we do keep our health in mind many people neglect one of the most important senses; our vision. Putting off having an eye exam could result in partial vision loss or even blindness. Most ophthalmologist or optician including LensWay, recommend a yearly visit as a good way to ensure that your eyes are in optimum health. Most eye problems can be treated with the use of prescription glasses, reading glasses or spectacles. A series of eye tests can be performed to determine whether or not the person has healthy eyes and normal vision – particularly important if they are a regular wearer of contacts.

Let’s take a look at a few of the methods used by opticians to assess the optical health.

The most common type of eye test is the Visual Acuity Test. In a standard procedure of this test the patient is asked to cover one eye and read the smallest line on a chart that is about twenty feet away. They will then be asked to cover the other eye and read the chart again. An abnormal test result will indicate that the person has some visual impairment and will need corrective lenses in the case of farsightedness or shortsightedness. They may also be diagnosed with an astigmatism which can be corrected with surgery.

Glaucoma is an eye condition that is brought on by abnormal levels of pressure buildup in the eye. It can cause permanent vision loss if it is untreated. When detected early, this condition is easily treated with either surgery or medication, depending on the severity of the disease. A Visual Field Test will determine whether or not the patient has glaucoma. The test is set up to measure a person’s peripheral or side vision. During the test the patient is instructed to look straight ahead while flashes of light are directed to the top, bottom or sides of his eyes. The patient must indicate when he sees the lights. This test can be performed in as little as three minutes.

Without proper screening many people go through to adulthood without ever realising that they are colour blind. A Colour Vision Test is used to determine a person’s ability to distinguish between different colours. During the test the person is shown clusters of coloured dots from a distance of fourteen inches. If prescription glasses or spectacles are worn by the patient then they will usually be required to wear them during the test. Reading glasses need not be worn. The person is asked to identify pictures within the dots; failure to do so is indicative of colour blindness. This could be a result of problems with the optic nerve. Although there is no known cure for colour blindness some choose to wear special glasses that have been specifically designed to help the person to differentiate between certain colours.

For obvious reasons a person’s eye health should always be taken very seriously. Even if you think that you have perfect vision a yearly exam by a licensed optician is recommended by medical experts. It could be the difference between normal vision and total blindness.

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