Knowing that we expose our eyes for at least 6 hours a day on screen, we have to take good care of the same. Regular eye check-up is a must. And when we are talking about eye test, then you will come across a number of them. This blog has covered different eye tests that your eye doctor performs during an extensive eye examination.

Types of eye tests

Applanation Tonometry 

The specific test of applanation tonometry is a popular eye test. It measures the amount of pressure it takes to flatten a portion of your cornea. Pressure readings help your doctor diagnose and also keep track of glaucoma. They will give you drops to numb your eye and then press lightly on it with a specialized tool called a tonometer.

Corneal Topography 

This is a computerized test and maps the curve of your eye’s cornea. This can show your eye’s surface problems like scarring or swelling, or conditions like astigmatism or diseases like keratoconus. You might undergo this test before you have eye surgery, a cornea transplant, or a contact lens fitting.

Fluorescein Angiogram 

This would let the doctor see how well the blood moves in your retina. This helps in diagnosing the disorders like diabetic retinopathy, muscular degeneration and retinal detachment. To perform this test, the doctor will inject a special dye referred to as fluorescein, into a vein in your arm. This quickly travels to the blood vessels inside the eye. Then, once it goes there, the concerned doctor uses a camera with special filters for highlighting the dye. They take the dye’s desired pictures as this goes through the blood vessels in the back of your eye. This helps them spot circulation problems, leaking, swelling or detecting any kind of abnormal blood vessels.

Dilated Pupillary Exam 

The doctor uses certain special drops for expanding your eye’s pupil in this eye test. That would let the doctors check your retina for any kind of diseases.

Refraction 

To recommend the right prescription glasses, the doctor conducts a refraction eye test. You look at a usually 20 feet away chart or in a mirror which makes things look like they are 20 feet away. You will look through a tool which is called a phoropter. This lets the doctor move the lenses of various strengths in front of your eyes. As a part of this test, the doctor assesses the vision issue. Your answers will help in assessing the power of your glasses or contact lens. This test helps the doctors in spotting hyperopia, presbyopia, astigmatism and myopia.

Site-lamp Exam 

The doctor uses this microscope to shine a beam of light shaped like a small slit on your eye. They may also effectively dilate your pupils during the test. This eye test can also help diagnose glaucoma, cataracts, muscular degeneration, detached retina, dry eye disease and cornea injuries.

Non-contact Tonometry 

This eye test helps in the diagnosis of glaucoma. The eye doctor will use a tonometer tool that blows a tiny puff of air, measuring the eye pressure indirectly by the eye’s resistance to the puff. Applanation instruments can also measure pressure. They are the most accurate, but for conducting this test, you would require a local anesthetic.

Retinal Tomography 

The computerized eye test can provide a remarkably detailed image of the retina and all of its layers. You might get it if you have a serious retina condition like an age-related retinal detachment or macular degeneration.

Ultrasound 

This eye test uses sound waves to take a picture of the inside of your eye. This helps your doctor to diagnose and then treat tumours, cataracts or bleeding in your eye. You might also get this before the cataract surgery.

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Eye test once a year

Once a year, it makes sense that eye on your vision to have it checked. Whether you go to the ophthalmologist or the optician is rather irrelevant. An annual eye test is essential, especially for citizens who use a vehicle in the form of a car or bicycle on public roads .

Conclusion 

Your eye doctor will recommend you the right test. Regular eye test is a preventive measure to overcome the growing eye issue and nipping the problem at the budding stage.