(without light impact)
(with light impact)
(with correct light refraction drawn in)
Illustration of the human eye ball and it's anatomy in a lateral view, sectioned. The normal impact and refraction of light is shown. The cloudy lens with the cataract is visible. The impact of light is changed.
The illustration shows the impact of light into a cataracted lens. The cloudyness of the lens causes scattering of the incoming rays of light.
The cataract is characterized by a loss of transparency of the lens and/or its capsula.
The lens divides the anterior from the posterior chambre of the eye and refracts the light befor it impacts the retina. Its maxima refractive power is about 15 dioptres.
A clouding of the lens can be congenital or aquired (senile cataract).
From left to right:
Arteries are shown in red, veins in blue.