Congenital Cataract

Question 1

What is the prevalence of cataracts that are present at birth?

Answer 1

90%

Question 2

How many people in a population are born with lens opacities?

Answer 2

3/10000

Question 3

What is the most common cause of bilateral congenital cataract?

Answer 3

Idiopathic

Question 4

What’s the prevalence of cataracts being bilateral and symmetrical?

Answer 4

70%

Question 5

How many of cataract cases are hereditary?

Answer 5

1/3

Question 6

What are the rare causes of congenital cataract?

Answer 6

• metabolic disorders
• systematic disorders: autosomal dominant inheritance
• chromosomal abnormalities

Question 7

What is the cause of unilateral congenital cataracts?

Answer 7

Idiopathic

Question 8

Why is early diagnosis and treatment good for congenital cataracts?

Answer 8

In order to avoid amblyopia (in case the cataract affects the vision in one eye so they can be treated before they finish the critical period)

Question 9

How can you check whether cataracts or amb is affecting vision?

Answer 9

By doing a cyclo refraction

Question 10

If members of the same family have a congenital cataract, will the opacity look the same?

Answer 10

No it differs in size shape and location across

Everyone