alias rašė:
> tada kontrklausimas: kokia sveiko žmogaus akies raiška? ;)
> 

Tinklainės struktūra ganėtinai netolygi ir skirtingose vietose raiška 
skirtinga. Negana to sensoriai dar yra sugrupuoti ir tarsi dirbtinai 
raiška sumažėja.
Tiesa yra maždaug tokia
Although there are more than 130 million retinal receptors, there are 
only approximately 1.2 million fibres (axons) in the optic nerve; a 
large amount of pre-processing is performed within the retina. The fovea 
produces the most accurate information. Despite occupying about 0.01% of 
the visual field (less than 2° of visual angle), about 10% of axons in 
the optic nerve are devoted to the fovea. The resolution limit of the 
fovea has been determined at around 10,000 points. The information 
capacity is estimated at 500,000 bits per second (for more information 
on bits, see information theory) without colour or around 600,000 bits 
per second including colour.