Здоровье глаз
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.
Инструкция
Read on to learn what healthy eyes look like.
Части глаза
The parts of the eye we can see from the outside include:
- веки (верхние и нижние)
- ресницы
- 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.
Как мы видим
- 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
- Когда эти сигналы достигают мозга, мы видим.
To see well, each part of the eye needs to be working properly, and the eyes need to work together.
Здоровые глаза
Практическое задание
Рассмотрите примеры здоровых глаз, приведенные на фотографиях ниже.
Обратите внимание на следующие особенности:
- No redness or swelling around the eyes
- Отсутствуют водянистые или липкие выделения
- На веках и ресницах нет корок или гноя
- 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.