চকুৰ স্বাস্থ্য
Eye health refers to the condition of a person’s eyes.
If a person’s eyes are not healthy, it affects how well their eyes can work.
Instruction
Read on to learn what healthy eyes look like.
Parts of the eye
The parts of the eye we can see from the outside include:
- Eyelids (top and bottom)
- Eyelashes
- Pupil (central dark part of the eye)
- Conjunctiva (white part of the eye)
- Iris (coloured part of the eye)
- Cornea (clear layer over the iris and pupil).
Other important parts of the eye include:
- Lens
- Retina (back of the eye)
- Optic nerve.
How we see
- Light enters through the pupil
- The light passes through the lens, which focuses it on the retina
- An image is formed on the retina
- The image is sent to the brain as electrical signals through the optic nerve
- When the signals reach the brain, we can see.
To see well, each part of the eye needs to be working properly, and the eyes need to work together.
Healthy eyes
কাৰ্যকলাপ
Look at the examples of healthy eyes in the pictures below.
তলত দিয়া বৈশিষ্ট্যসমূহ মন কৰক:
- No redness or swelling around the eyes
- No watery or sticky discharge
- Eyelids and eyelashes are free from crust or pus
- White part of the eye is white
- Coloured part of the eye is clear – not milky or cloudy
- Both eyes look in the same direction.