Vision is interpretative

The pathway for visual perception

Which chicken is larger?

They are actually the same size

Are the hens really the same size?

No, the front hen is larger

Name the color of each word

black green orange blue brown red violet

Name the color of each “word”

XXXX XXXX XXXX XXXX XXXX XXXX XXXX

Name the color of each word

violet brown black blue red orange green

The light path through the retinalig

ht

path

A B

C

Chromatic aberrationA B

C D

Accommodation

Ciliary muscles

Near vs. far viewing

Pupillary constriction

A

B

A1. wide aperture/pupil

B1. narrow aperture/pupil

Emmetropia

Myopia

Hyperopia

Babies are hyperopic

Retinal anatomy

Age-related macular degeneration

Photopigment cycle in rods

Photopigment cycle in cones

Which star is brighter?

Both stars have the same luminance

Adaptation in dim light

Adaptation in bright light

Cone sensitivities to wavelengths

Retinal color

channels

Photoreceptor distributions

Polar skew in acuity