VISUAL DEVELOPMENT

Question 1

Can fix and follow a light source, face or large, colorful toy.

Answer 1

Very soon after birth

Question 2

Fixation is central, steady and maintained, can follow a slow target, and converge, preference of looking at face.

Answer 2

1 month

Question 3

binocular vision and eye coordination, eyes follow a moving light or face, responsive smile.

Answer 3

3 months

Question 4

Reaches out accurately for toys.

Answer 4

6 months

Question 5

look for hidden toys.

Answer 5

9 months

Question 6

Picture matching

Answer 6

2 years

Question 7

Letter matching of single

letters (e.g., Sheridan Gardiner)

Answer 7

3 years

Question 8

Snellen chart by matching or naming

Answer 8

5 years

Question 9

Blinking (to light stimulus)

Answer 9

Birth

Question 10

Vestibulo-ocular

Answer 10

1 week

Question 11

Small saccades

Answer 11

2 weeks

Question 12

Large saccades, pursuit, bifoveal fixation, convergence

Answer 12

2 months

Question 13

Uniocular fixation

Answer 13

3 months

Question 14

Fusional vergence, sensory fusion, stereopsis

Answer 14

4 months

Question 15

Accomodation

Answer 15

6 months

Question 16

Pupillary light reaction

Answer 16

30 weeks gestation

Question 17

Blink response to visual stimuli

Answer 17

2-5 months

Question 18

Fixation

Answer 18

2 months

Question 19

Smooth pursuit

Answer 19

6-8 weeks

Question 20

Saccades

Answer 20

1-3 months

Question 21

Optokinetic nystagmus(OKN)

Answer 21

Developed by 2-4 month

Question 22

Ocular Alignment

Answer 22

1 month

Question 23

Foveal maturation

Answer 23

4 months

Question 24

Optic nerve myelination

Answer 24

7 months to 2 yrs

Question 25

Light perception

Answer 25

Newborn

Question 26

Eye contact with mother

Answer 26

4-7 weeks

Question 27

Fixates and follows interesting bright coloured objects

Answer 27

4-12 weeks

Question 28

Change expression smiles and cries

Answer 28

3 months

Question 29

Reach objects using vision

Answer 29

3-4 months

Question 30

Crawling and later walking avoiding objects

Answer 30

6-9 months