Low Vision

Question 1

Three most common clinical scenarios presenting to the ophthalmologist

Answer 1

• The neonate or young baby who appears to be visually impaired
• The visually impaired baby with no obvious ophthalmic abnormality
• The child with visual difficulty

Question 2

Normal neonate is ___D of hypermetropia

Answer 2

2-3 diopters of hypermetropia, accompanied by a high prevalence of astigmatism

Question 3

At birth, the globe measures

Answer 3

16.5mm in diameter

Question 4

Over the first year, the diameter increases rapidly to reach an almost adult diameter of

Answer 4

24.5mm

Question 5

The spherical equivalent refractive error of full-term newborn infants is distributed about a mean of

Answer 5

+2.00D with a standard deviation of 2 diopters

Question 6

The ______ is well developed at term; however the ______ is immature

Answer 6

retina, foveal region

Question 7

The foveal region is immature, not reaching adult maturity until ____

Answer 7

4 months of age

Question 8

The neural pathways are also ______

Answer 8

immature at term

Question 9

Cells in lateral geniculate ganglion reaching adult size at age

Answer 9

2 years

Question 10

Optic nerve become fully myelinated at

Answer 10

7 months

Question 11

By the age ________ the VA is estimated to be 6/6

Answer 11

20-30 months