Eyesight and Illusions

Question 1

Main components of the eye

Answer 1

• Corena and lens
• Retina
• Optic Nerve

Light passes through the cornea and lens, which focus the ray onto the retina, which translates it to electric signals to optic nerve to our brain

Question 2

Name of the ability to change focus from far and close objects

Answer 2

Accommodation, and decays with age

Question 3

Retina is divided into two:

Answer 3

• Cones (foveal vision)
• Rods (peripheral vision)

Question 4

The cones

Answer 4

Sensitive to color, small details and distant objects. More effective in daylight then nighttime.

Question 5

The rods

Answer 5

Sensitive to movement but not to detail or color. Effective in both daylight and darkness, and responsible for peripheral vision (off-center vision)

Question 6

Empty field myopia

Answer 6

The natual tendenacy of the eye to focus at 1-2m, and not at infinity as we might think (like looking out the window of a blue sky)

Question 7

Autokinesis

Answer 7

Staring continously at a single light against a dark background will look like its moving

Question 8

False horizon visual illusion

Answer 8

Can be caused by tilted clouds. Always trust instruments

Question 9

Runway slope visual illusion

Answer 9

Upslope, will look longer and you feel you are high on slope.

Question 10

Runway size visual illusion

Answer 10

Runway that is larger will apear closer then really is.

Question 11

Nearsightedness name

Answer 11

Myopia

Question 12

Myopia meaning

Answer 12

Cannot see distant objects. Optical images form infront of the retina

Question 13

Which part makes accomodation

Answer 13

The crystalline lens