A Basic Eye Quiz – Can You Pass This Super Basic Quiz?

by Sankalan Baidya
basic eye quiz

A basic eye quiz will be a little eye opening for all. Why, you ask? Because we learn a lot about organs of our body but we forget the basic parts and what they do in organs so yeah, this basic quiz may leave you your head scratching.

There is a saying that “eyes are the windows to the soul”. We don’t know to what extent it is true and we are not debating that today. However, we know one thing for sure, that eyes are one of the few organs which takes satisfaction in humans’ lives to the next level.

Human experiences in this world have increased multifold thanks to our eyes. If the eyes were not there, we couldn’t afford to see the beautiful mountains, seas, oceans, or even our loved ones. If we didn’t have eyesight, we couldn’t have seen such vibrant colors, our silly dogs and crazy cats, or any goofy pet.

Oops, you would not be able to see yourself or your friends! Gosh! These possibilities are actually creepy. Just imagine not seeing a damn thing for the rest of your life. We need to thank God for creating such amazing organs which made our lives better.

Unfortunately, we usually take these things for granted but once we are left without them, we understand their value. Our eyesight is one of the primary things that we usually take for granted. We request you to take care of your eyes properly and of course your whole body and even your family for that matter.

So, today we bring to you this basic eye quiz that will teach you the basics of our eyes again and discusses a few of the eye disorders in general. Are you ready folks? Just start the quiz and see how well you fare in this basic eye quiz.

How large is an eye?

eye size
Correct! Wrong!

An eye is as big as a ping pong ball. The size of an eye is usually around 24.2 millimeters * 23.7 millimeters * 22 to 24.8 millimeters.

Which part of the eye give eye its shape?

eye shape
Correct! Wrong!

The vitreous body is the largest part of the eye and the part which gives the eye its shape.

Which is the leading reason for causing irreversible blindness?

eye disease
Correct! Wrong!

Glaucoma damages the optic nerve thereby causing irreversible blindness. Anyone over 40 must be tested for glaucoma because if it is detected early, the process of loss of vision could be slowed down.

Darker sunglasses are better?

eye protection
Correct! Wrong!

False. You don’t need darker sunglasses to protect your eyes. You need sunglasses that will block UV rays or ultraviolet rays from harming your eyes.

Eye exercises strengthen your eyes?

Correct! Wrong!

False. Eye exercises don’t necessarily strengthen your eyes. The strength of your eyes or your vision is inherited.

Which part of the eye is colored?

eye color
Correct! Wrong!

Iris is the colored part of the eye. The color may vary from black to blue, from brown to green, etc.

Where are the rods and cones located in the eyes?

eye cells
Correct! Wrong!

Rods and cones are located in the retina. Cones are responsible for the vision of color and rods help in night vision.

Having two functional eyes helps you with?

two eyes
Correct! Wrong!

Each eye has a slightly different view of the same object. The brain analyses both the images and calculates the distance, color, etc. features of the object. The depth perception is one of the major areas where having two functional eyes help you immensely. It is to be noted that depth perception can be achieved even with one eye but it won’t be as good as the depth perception with two eyes.

How many extra-ocular muscles are present in each eye?

eye quiz
Correct! Wrong!

There are seven extra-ocular muscles present in each eye. These muscles control our eye movements.

Ciliary muscles control the focal length of which part of the eye?

Correct! Wrong!

The focal length of the lens is controlled by ciliary muscles. When we look at things that are close, the ciliary muscles contract, and the focal length decreases so that the image can be brought into focus and vice versa.

Which part of the eye is usually donated?

Correct! Wrong!

The cornea is the part of the eye that is usually donated and transplanted.

What is the scientific name of the white of the eye?

Correct! Wrong!

The sclera is the outer covering of the eye. It is a connective tissue that protects our eyes. In children, it is a little transparent but with age, it gets opaque and gets yellower.

Human eye can detect _________ wavelength of light?

Correct! Wrong!

Human eyes can detect 400 to 700 nanometers wavelength of light. It is popularly known as the visible range.

Which part of the eye directly draws oxygen from air?

Correct! Wrong!

The cornea is the only part of the body that doesn’t have the supply of blood vessels. It directly draws oxygen from the air.

Which of the light sensitive cell helps us see color?

Correct! Wrong!

Cones are the light-sensitive cells that help us see color.

Which accessory part of the eye does our body use to shut our eyes from any potential danger?

eye protection
Correct! Wrong!

Eyelids are the accessory parts of the eye that our body uses to shut our eyes from any potential danger. Apart from this, eyelids also help in keeping our eyes moist.

Clouding of the lens of the eyes is medically called?

clouding of the eyes
Correct! Wrong!

A cataract is a medical term used for the clouding of the lens of the eye.

Which of the following visual impairment is seen in almost everyone?

eye disorders
Correct! Wrong!

Astigmatism is a condition that causes blurred vision. It is usually caused by the curvature of the lens or caused by the irregularly shaped cornea.

Watching TV in the dark damages your eyes?

eye damage
Correct! Wrong!

Our eyes are just like video cameras; they can adjust to the light. But that doesn’t mean you keep on watching TV in the dark, in the long run, it will put a strain on your eyes.

Most of the people who work on computers suffer from eyestrain?

eye strain
Correct! Wrong!

True. Most of the people who work on computers suffer from eyestrain. When a person is on the computer, his head is tense, his neck muscles are under stress and we blink less than usual. These factors directly or indirectly cause eyestrain.

A Basic Eye Quiz
You failed! What can I say anything more?


You need to pay attention to your eyes and your studies simultaneously. Next time, prep yourself and come and take this quiz again.
You passed with flying colors!


You may not possess a lot of knowledge about eyes but hey, who knows everything? You did pretty well. We are proud of you!
You aced it! Awesome bud!


You sure know a lot about your eyes and with this knowledge, we guess you take care of your eyes very well! Congratulations, buddy!

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Image Credits: All images are taken from Envato Elements

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