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Vision and Technologies

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Complete this activity to summarise accommodation and technologies that are used to manage and treat vision disorders.

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biology
visión
accommodation
eye technology
 Edad recomendada: 16 años
0 veces realizada

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Belinda Schirmer
Belinda Schirmer
Australia

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Vision and Technologies

Complete this activity to summarise accommodation and technologies that are used to manage and treat vision disorders.

Belinda Schirmer
1

rays near shape accommodation retina point clear

The shape of the lens refracts ( bends ) light to focus them precisely on the . This allows vision . When focusing on or far objects , the lens of the eye changes to ensure the light rays meet at a focal on the retina . This process is called .

2

contracting ciliary more far slacken pull thinner focusing ligaments

When on close objects , the lens is rounder and curved in shape . This is due to the ciliary muscles which causes the suspensory ligaments to .
When focusing on objects , the muscles relax , which causes the suspensory to become taut and on the lens . This causes the lens to become and less curved in shape .

3

cataract bionic refractive spectacles surgery light cornea vision hyperopia Concave bypassing

Lenses are used in and contact lenses to correct the errors of the eye . lenses correct myopia , while convex lenses correct .
Laser changes the convexity of the to correct refractive errors and allow rays to be focused on the retina . Cataract and laser surgery restore vision to cataract sufferers .
The eye could help to restore to those suffering from retinitis pigmentosa by damaged rod and cone cells .

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