Colour Defects

Question 1

What are the two types of PHOTORECEPTORS IN THE RETINA?

Answer 1

Rods and Cons

Question 2

Rods or Cones : Scotopic Vision

Answer 2

Rods

Question 3

Rodes or Cones : Dim / Dark Light

Answer 3

Rods

Question 4

Rodes or Cones : Lights In Shades Of Grey

Answer 4

Rods

Question 5

Rodes or Cones : Night Time

Answer 5

Rods

Question 6

Rodes or Cones :
Decrease in Visual Acuity
Decrease in Colour Vision
Decrease in Edge Detection

Answer 6

Rods

Question 7

Rodes or Cones :

Pigment : Rhodopsin

Answer 7

Rods

Question 8

Rodes or Cones : Retinal and Opsin

Answer 8

Rods

Question 9

Rodes or Cones :

Density : Peripheral of Retina

Answer 9

Rods

Question 10

Rodes or Cones : Photopic Vision

Answer 10

Cones

Question 11

Rodes or Cones : Bright Light

Answer 11

Cones

Question 12

Rodes or Cones :
Good for Visual Acuity
Good for Colour Vision
Good for Edge Detection

Answer 12

Cones

Question 13

Rodes or Cones :

Pigment : Photopsin

Answer 13

Cones

Question 14

Rodes or Cones :

Density : Central of Retina (Fovea)

Answer 14

Cones

Question 15

Cones Pick Up What?

Answer 15

Red :
Blue
Green

Question 16

Define TRANSDUCTION

Answer 16

Rods and Cones responds to light THE SAME WAY.

Process is the same/

Question 17

Where are Rods and Cones located?

Answer 17

Retina

Question 18

What are Rods and Cones?

Answer 18

Light Photo-receptors

Question 19

MONOCHROMACY

Answer 19

NO COLOUR

NO CONES, ONLY RODS

Question 20

DICHROMACY

Answer 20

DEPENDS WHICH CONE / OPSIN IS MISSING

Question 21

PROTANOPIA

Answer 21

Missing RED Opsin

Question 22

DEUTERANOPIA

Answer 22

Missing GREEN Opsin

Question 23

TRITANOPIA

Answer 23

MISSING BLUE OPSIN

Question 24

TRICHROMACY

Answer 24

NORMAL COLOUR VISION

ALL CONES ARE PRESENT

Question 25

ANOMALOUS TRICHROMACY

Answer 25

ONE CONE OPSIN IS FAULTY BUT STILL FUNCTIONS AT SOME LEVEL