COT Surgical Assisting Procedures 2

Question 1

When setting up a cataract surgery instrument tray, which item is used to hold the eyelid open during the procedure?

Accepted Answer

Lid speculum

Answer

A lid speculum is placed between the eyelids to keep the eye open and maintain exposure throughout cataract surgery.

Question 2

During phacoemulsification, the ophthalmic surgical technician should anticipate handing the surgeon which instrument immediately after the capsulorhexis is completed?

Accepted Answer

Hydrodissection cannula

Answer

After capsulorhexis, hydrodissection separates the lens nucleus from the capsule, requiring the hydrodissection cannula next.

Question 3

What is the correct technique for handling ophthalmic microsurgical instruments to prevent damage?

Accepted Answer

Hold by the shaft and avoid touching the tips

Answer

Microsurgical instrument tips are delicate and must never contact hard surfaces; handling by the shaft protects their precision alignment.

Question 4

Which balanced salt solution (BSS) characteristic is most critical when irrigating the anterior chamber during surgery?

Accepted Answer

Isotonic and buffered to physiologic pH

Answer

Anterior chamber irrigation requires isotonic, pH-balanced BSS to protect corneal endothelial cells and maintain ocular integrity.

Question 5

A surgeon requests a 10-0 nylon suture during corneal repair. Which needle type is most appropriate for this suture?

Accepted Answer

Spatula needle

Answer

Spatula needles are designed for lamellar tissue like the cornea, passing between layers without perforating them inadvertently.

COT - Certified Ophthalmic Technician Practice Test

COT - Certified Ophthalmic Technician Practice Test

COT Surgical Assisting Procedures 2