La santé oculaire
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.
Les parties de l'œil
The parts of the eye we can see from the outside include:
- paupières (supérieure et inférieure)
- cils
- 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.
Comment nous voyons
- 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
- Lorsque les signaux atteignent le cerveau, nous pouvons voir.
To see well, each part of the eye needs to be working properly, and the eyes need to work together.
Des yeux en bonne santé
Activité
Regardez les photographies suivantes montrant des yeux en bonne santé.
Vous noterez les caractéristiques suivantes :
- No redness or swelling around the eyes
- Il n'y a pas d'écoulement aqueux ou visqueux.
- Les paupières et les cils ne présentent pas de croûtes ou de 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.