CCA Ocular Prosthetics 2

Question 1

Which layer of the ocular prosthesis is responsible for giving the iris its depth and three-dimensional appearance?

Accepted Answer

The hand-painted iris lamination between clear acrylic layers

Answer

The hand-painted iris is laminated between layers of clear acrylic to create a realistic depth effect in the finished prosthesis.

Question 2

A patient presents with an anophthalmic socket that has developed ptosis of the upper eyelid. What is the most likely contributing prosthetic factor?

Accepted Answer

Excessive prosthetic weight causing levator muscle stretch

Answer

Excessive prosthetic weight can chronically stretch the levator muscle, contributing to acquired ptosis in anophthalmic patients.

Question 3

What is the purpose of the conformer placed in the socket immediately after enucleation?

Accepted Answer

To maintain the conjunctival fornices and prevent socket contraction

Answer

A conformer maintains the conjunctival fornices open and prevents socket contraction while the socket heals after enucleation.

Question 4

When modifying a stock ocular prosthesis for a pediatric patient, which growth-related consideration is most critical?

Accepted Answer

The prosthesis must be replaced or modified frequently to stimulate orbital growth

Answer

Adequate orbital volume stimulation through prosthetic modifications is essential to promote normal orbital and facial bone development in children.

Question 5

Which suture technique is most commonly used to close the conjunctiva over an implant after enucleation?

Accepted Answer

Interrupted Vicryl sutures in a layered closure

Answer

A layered closure with interrupted absorbable Vicryl sutures provides secure wound closure over the orbital implant after enucleation.

(CCA) Certified Clinical Anaplastologist Practice Test