Microspherophakia Developmental Abnormality Quiz

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What is the characteristic refractive error associated with microspherophakia?

Astigmatism

Presbyopia

Hyperopia

Myopia (correct)

Which syndrome is microspherophakia commonly a part of?

Weill-Marchesani syndrome (correct)

Marfan syndrome

Lowe syndrome

Alport syndrome

What ocular condition can result from the spherical lens blocking the pupil?

Open-angle glaucoma

Cataracts

Retinal detachment

Secondary angle-closure glaucoma (correct)

What is the cause of microspherophakia believed to be?

Faulty development of the secondary lens fibers during embryogenesis Signup and view all the answers

What is the medical treatment of choice for an attack of angle-closure glaucoma in patients with microspherophakia?

Cycloplegics Signup and view all the answers

How does the use of miotics aggravate angle-closure glaucoma in patients with microspherophakia?

By allowing forward lens displacement Signup and view all the answers

What is the heritability pattern of Weill-Marchesani syndrome?

Autosomal recessive Signup and view all the answers

Why do individuals with Weill-Marchesani syndrome commonly have small stature, short fingers, and broad hands?

A result of genetic mutations affecting limb development Signup and view all the answers

What visual symptom can be observed at the slit lamp in microspherophakia?

Visible lens equator Signup and view all the answers

What shape is the opacification typically in a contusion cataract?

Stellate or rosette-shaped Signup and view all the answers

What is the location of the opacification in a contusion cataract?

Posterior lens capsule Signup and view all the answers

What can occur in addition to cataract formation in some cases of blunt trauma?

Dislocation Signup and view all the answers

What is the prognosis for mild contusion cataracts?

They can improve spontaneously Signup and view all the answers

What is the term for a cataract that involves the entire lens?

Total cataract Signup and view all the answers