6112698
Descripción
Fichas por husien jama, actualizado hace más de 1 año
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Creado por husien jama
hace alrededor de 10 años
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| Pregunta | Respuesta |
| what is lens? | its a flexible structure in the eye to enables light the eye to focus on the retina. |
| what is concave lens? | a lens that curves inwards. |
| what is convex lens? | a lens which bulges outwards. |
| what is a retina? | a nerve tissue at the back of the eye , the light is converted here. |
| what is a cornea? | a transparent covering over the eye. |
| what is an optic nerve? | nerves that carry electrical from the retina to the brain. |
| what is accommodation? | the ability of changing the shape and the focus of the length. |
| whats is central for sharp central vision. | the fovea-centralis. |
| which part of the eye has a rich blood supply? | the CHOROID. |
| What are the four main parts of the eye? | 1-iris 2-pupil 3-sphincter muscle 4-dilator muscle. |
| what does the eye muscle do? | enables eye to rotate in its socket. |
| What happens to our lens as we age? | the lens harden , which makes accommodation more difficult. |
| what is an bionic implant? | a chip with an array with 1000 electrodes. |
| what are contact lens made out of? | Hard plastic , or from water-absorbing materials. |
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