Optical Illusion

It’s your BRAIN again!

Let us start with EYESssss

1. Sclera

= Skin of the eye

= Protection

2. Cornea

= window of the eye

=refracts light

3. Iris

= the coloured part of your

eye

= control amount of light

4. Pupil

= the HOLE

Lens

= refracts and focus light

Retina

Optic Nerve

Fovea

Retina: 1. Detect light stimulus

2. Converts light detected to nerve impulses

CONES & RODS ??

Photoreceptors lahhhh

Optic Nerve

The USB cable from your eye to your BRAIN

= Send nerve impulses from retina to brain

GOT IT?

You see what your BRAIN

sees.

Easy?

HOW??

Because 50% of your brain is used for

vision!!

Massive processor, decidated for:

1. Detect

2. Analyze

3. Recognize

4. Reason with visual input

What about this?

Quick! Find the blue circle!

Optical Illusion

Limitation of sight

The shift between what your EYE see, and what your

BRAIN perceives (what you brain “see”)

What colour is this

dress??