ciliary muscle - muscle that changes the eye lens thicness, eye lens - transparent and elastic convex lens which focuses light onto the retina, sclera - strong layer that maintains the shape of the eye and protects it., choroid - black layer that prevents reflection of light in the eye and supplies oxygen and nutrients to the eye, retina - layer containing photoreceptors which detects light and produces nerve impulses, yellow spot - most sensitive part of the retina as it has many photoreceptors, optic nerves - nerve fibres which carry nerve impulses from the retina to the brain to be interpreted, blindspot - part of the retina which is not sensitive to light as there are no photoreceptors and an exit point for all optic nerve fibres, vitreous humour - transparent jelly-like substance which maintains the shape of the eyeball and focuses light onto the retina, suspensory ligaments - strong fibres which hold the eye lens in its position., cornea - transparent layer which refracts and focuses light onto the retina, iris - the coloured part of the eye which controls the size of the pupil, pupil - opening in the centre of the iris which controls the quantity of light entering the eye, aqueous humour - transparent fluid which maintains the shape of the eyeball and focuses light into the eye, conjuctivita - transparent mambrane which protects the front part of the sclera,

eye components function

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