Chapter 16 Multiple Choice/True & False

The cornea consists of _____ layers.

4

How many extrinsic muscles does the eye have?

6

How many bones make up the orbit of the eye?

7

or Ophthalmic surgical interventions the CST should know that the anterior chamber of the eye contains ___________and the posterior chamber contains _______.

Aqueus, Vitreus

During ophthalmic procedures the CST must periodically irrigate the eye using ________ to prevent corneal drying.

BSS

To correct a strabismus, _____ may be performed.

Both Recession and Resection

The __________________surgical instrument is essential for the surgeon in resection or recession of the extrinsic eye muscle.

CastroVeijo Caliper

The term _____ describes a crystalline lens that has become opaque

Cataract

Use of the phaco hand piece and phacoemulsification should associated with the following surgical intervention?

Cataract Extraction

The patients diagnosis was opacified lens OD, the CST should expect the surgical schedule to reflect the following surgical intervention?

Cataract Extraction Right Eye

A _____ is a small lump on the inner or outer surface of the eyelid.

Chalazion

____ deals with cold.

Cryotherapy

A(n) _____ is performed to assist in the drainage of tears and secretions from the lacrimal sac into the middle meatus of the nose by forming a short circuit through the lacrimal bone and the nasal mucosa.

Dacryocystorhinostomy

Diplopia means:

Double Vision

Conjunctivitis is an inflammation of the sclera.

False

Six bones form the orbit of the eye.

False

The anterior chamber of the eye contains vitreous humor.

False

The choroid is a thick, reddish, highly vascular membrane that makes up the anterior five-sixths of the eye

False

The inferior oblique is an intrinsic eye muscle.

False

The posterior cavity of the eye lies in front of the lens and contains two chambers.

False

The sclera and iris form the external tunic of the eye.

False

Westcott scissors are designed for working on heavy tissues.

False

The pathology associated with the surgical intervention iridectomy is _______?

Glaucoma

_____ is (are) the leading cause of blindness in the United States.

Glaucoma

Which of the following muscles rotates the eye upward and away from the midline?

Inferior Oblique

The CST scrubbed on the ___________ ophthalmic procedure must ensure that the donor tissue is in the room prior to patient intubation.

Keratoplasty

Which of the following secretes tears?

Lacrimal Gland

Which of the following is an extrinsic eye muscle?

Lateral Rectus

Which of the following is NOT a bone of the orbit?

Mandible

Which of the following deals with excessive scar tissue within the eye?

PVR

During ophthalmic procedures, once gowned & gloved the CST should ensure that the surgeon?

Removed Powder from gloves

For most ophthalmic procedures the anesthesiologist will perform a _______ Block.

Retrobulbar

An iridectomy is the removal of:

Section of the Iris

A patient diagnosed with a misalignment or deviation of the eyes, might be scheduled for the following surgical intervention?

Strabismus

_____ is a treatment for glaucoma.

Trabeculotomy

Glaucoma is the leading cause of blindness in the United States.

True

Symptoms of retinal detachment include flashes of light or large spots in the vision.

True

The ciliary body is similar in structure to the choroid but contains larger vessels.

True

The cornea consists of four layers.

True

The crystalline lens is situated behind the pupil.

True

The lacrimal canals are located at the minute orifices called punctum lacrimale.

True

The maxilla is a bone of the orbit.

True

The medial rectus rotates the eye toward the midline.

True

The posterior cavity of the eye is larger than the anterior cavity.

True

The retina makes up the inner tunic of the eye.

True

The term iris means rainbow.

True

Two check ligaments limit the movement of the lateral and medial recti.

True

Vitreous humor helps keep the eyeball from collapsing.

True

Ptosis is a drooping of the:

Upper Eyelid

The posterior cavity of the eye contains a substance similar in consistency to soft gelatin; this "eye jelly" is called:

Vitreous Humour

Which of these scissors would an ophthalmic surgeon use on the eye?

Westcott