Case 55: Congenital cataracts
Terms in this set (13)
If a healthy neonate has bilateral lens clouding, what is the most likely diagnosis?
What is the next step in evaluation when an infant is found to have congenital cataracts?
An ophthalmologic evaluation and a complete evaluation for associated hereditary, metabolic, or infectious causes
What is a cataract?
Opacification of the lens
What is aphakia?
Absence of the lens
What is amblyopia?
Loss of vision caused by underuse of the eye
If the cataracts is a hereditary condition, how is it likely inherited?
What are some of the infectious causes of cataracts?
Toxoplasmosis, CMV, syphilis, rubella, and herpes simplex
What are some of the metabolic diseases that may result in cataracts?
Galatosemia, homocysteinemia, galactokinase deficiency, abeta-lipoproteinemia, Fabry's disease, Hurlers, Nieman Pick, Refsum and Wilsons disease
What are some of the chromosomal abnormalities that are associated with congenital cataracts?
Trisomies and Turner syndrome
What sort of blood tests need to be done for an infant with congenital cataracts?
TORCH titers and a newborn metabolic screening test
How soon after birth can surgical removal of the lens occur?
2-4 weeks after birth
What is done for the infant after its lens has been surgically removed?
It is fitted with refraction contact lenses, and then a lens replacement is done when the child is 2 years old
What is the classic triad of infantile glaucoma?
Tearing, photophobia, and blepharospasm. In addition the eyes may appear different sizes.