Chapter 16

Which retinal structure allows for perception of general shapes and shades of gray in dim light? 

What kind of anesthetic block is used for a vitrectomy procedure? 

Perfluoropropane and sulfur hexafluoride are used to: 

Which of the following is a pharmacologic agent that constricts the pupil of the eye? 

 A trephine is used in which ophthalmologic procedure? 

Which sterile irrigation fluid is used for ophthalmic procedures? 

The normal condition of the lens of the eye is: 

What is another name for the traction sutures used to manipulate the globe of the eye? 

Which of the following represents the replacement device for the cataract lens in the eye? 

Where is the lacrimal gland located? 

Into which structures do the lacrimal ducts drain tears? 

Which procedure done on an eye with internal malfunction or loss of contents and no possible recovery of sight provides better mobility and cosmetic result with a prosthetic eye? 

Which procedure surgically treats glaucoma? 

What is the portion of the eye between the cornea and the iris in which aqueous fluid flows and nourishes tissues? 

What is another name for a cystic structure caused by an inflammatory response to material trapped in a meibomian gland? 

Which of the following is an inward turning of the eyelid with resulting corneal irritation? 

Which instrument is used to remove the cataract lens in preparation for intraocular lens placement? 

Which of the following is the name of locking or nonlocking needle holders frequently used in ophthalmology? 

Which of the following scissors would NOT be used for ophthalmologic procedures? 

What passes through the canal of Schlemm? 

Misalignment or deviation from coordinated movement of the eyes is: 

If looking at the right eye of a patient and assigning clock positions of 12, 3, 6, and 9 o’clock to the rectus eye muscles, which of the following would be CORRECT? 

Which of the following is the term for “crossed eyes”? 

 Which structure of the eye is colored and its muscles constrict or relax to control the amount of light entering the pupil? 

How many tunics comprise the structure of the globe of the eye? 

Which two structures form the external tunic of the globe of the eye? 

Which procedure involves adjusting sutures after the patient has recovered completely from anesthesia, but within 24 hours? 

Which structure of the eye is the thin, transparent lining of the inner surface of the eyelid and covers the sclera? 

Which of the following is NOT used for visualization in ophthalmologic procedures? 

Which of the following names represents an eye speculum that resembles an uncoiled metal paper clip? 

All of the following are methods of intraocular lens insertion EXCEPT: 

How would a definitive diagnosis of detached retina be obtained if hemorrhage is present in the eye? 

What is the name of the gelatin-like fluid that fills the posterior cavity of the eye? 

For which surgical procedure would an Fragmatome be used? 

Which substance is used following vitrectomy for long-term support of the retina with fewer restrictions on position? 

What is the name of the membrane that contains and encloses the vitreous humor in the posterior cavity? 

Where would a Veirs rod be placed to relieve or prevent obstruction? 

What is the condition of the lens that is treated by cataract extraction? 

In which of the following procedures would sutures most likely NOT be necessary? 

What is the name of the opening created in the outer tunic for insertion of the infusion cannula for excision of vitreous? 

 What is the name of the structure that is a small depression containing only cones and has the highest visual acuity? 

Tetracaine drops are used in opthomologic procedures to:

Which of the following techniques uses a laser to treat retinal tears or proliferative diabetic retinopathy? 

Which procedure may be done in conjunction with vitrectomy if the surgeon is unable to gain visualization of the posterior cavity of the eye? 

What is the term for the six muscles that provide movement of the eye? 

Which of the following is an intraocular procedure? 

What structure is avascular, external, and its function is to refract light rays? 

Which structure has four layers: epithelial cells, substantia propria, elastic lamina, and endothelial cells? 

Which type of needle is frequently used in ophthalmologic procedures? 

Cryotherapy uses which of the following to seal retinal tears and holes? 

Overhead OR spotlights should be placed on highest setting to provide necessary illumination during intraocular procedures. 

Donor corneas must be screened for HIV, HBV, and CJD prior to transplant. 

The surgical technologist must develop the ability to transfer very small, delicate instruments into the surgeon’s hand in a functional manner so that he or she does not have to look away from the microscope. 

 Cataracts are categorized as a general condition of aging rather than a disease process. 

Gas injected into the posterior cavity of the eye following vitrectomy is more stable and requires fewer restrictions of a patient with regard to positioning and altitude than silicone oil.

Type of drape with a rounded fenestration and adhesive backing; used when procedure involves the globe of the eye 

Type of drape sheet with “U” configuration and adhesive edged “legs”; used for procedures requiring broader access to extraocular areas

Thick connective tissue structure that provides integrity to the shape of the eyelid: may be repositioned in entropian repair

Angular junction of the eyelids at either corner of the eye 

Porous, circumferential band of tiny canals through which the aqueous humor drains 

Name of line of miniscalpel blades used in ophthalmology and ENT 

Visual defect in which one object is seen in duplicate; treated with adjustable suture technique of strabismus correction

Variable-rate, reciprocating, and cutting-tip hand piece attached to suction 

Unit of measurement of the optical power of a magnifying lens 

Hereditary, progressive, noninflammatory disease of the anterior surface of the eye; diagnostic indication for keratoplasty