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The eye is one of the most important sensitive organs in the human body, so it is recommended to periodically check it, measure vision and make sure it has no health problems. webmd IS:
Visual acuity test
You look at a series of letters to find out how sharp your vision is at different distances Usually the letters get smaller as you progress, usually you try one eye at a time, then both eyes together If you have “20/30” vision, it means you are 20 feet away From the graph you can read the letters that most people see from a distance of 9 meters. So 20/20 would be better and 20/15 would be better.
Eye muscle test
Your doctor will ask you to follow the movement of a small object, such as a pen or light, with your eyes. They will watch to see how your eyes work together and look for signs of weakness and poor muscle control. Your doctor will also want to know if you see weakness as your eyes move.
Visual field test
This is also called a measurement test.While you focus straight in front of you, your doctor will ask you to tell him as soon as you see a certain object, such as a hand, pen, or flashing light. This will let them know how wide your field of vision is. If your peripheral (lateral) vision isn’t as strong as it should be, it could be a sign of glaucoma. This is a group of eye conditions that can lead to vision loss
Eye pressure test
Tonometry measures the pressure of the fluid inside the eye. If it is very high, it could be a sign of glaucoma. There are two ways to do this: in one, you will be given numbing drops before pushing an instrument called an ophthalmometer in front of your eye. In the other case, only a slight puff of air enters your eyes. Neither method should hurt.
Color vision test
Your doctor or technician may show you a series of numbers, letters, or shapes made up of many small dots of different colors. If you can’t choose certain patterns, it could mean that you have a hard time distinguishing between one color and another. It can be helpful to know if you have it.
Retina test
The retina is a layer of light-sensitive cells that line the back of the eye and send signals to the brain to check it.Firstly, you will receive drops in the eye to dilate the pupil. This will allow your ophthalmologist to take a good look at the retina and optic nerve to see if anything is wrong.
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