SUR 104 Ch 16

Cataracts are categorized as a general condition of aging rather than a disease process. A) True B) False

A. True

Which retinal structure allows for perception of general shapes and shades of gray in dim light? A) cones B) fovea C) rods D) macula

C) rods

Misalignment or deviation from coordinated movement of the eyes is: A) astigmatism B) macular degeneration. C) retinal detachment D) strabismus

D) strabismus

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? A) 12 = superior; 3 = medial; 6 = inferior; 9 = lateral B) 12 = superior; 3 = lateral; 6 = inferior; 9 = medial C) 12 = inferior; 3 = medial; 6 = lateral; 9 = superior D) 12 = inferior; 3 = lateral; 6 = medial; 9 = superior

A) 12 = superior; 3 = medial; 6 = inferior; 9 = lateral

Which of the following names represents an eye speculum that resembles an uncoiled metal paper clip? A) Barraquer B) Castroviejo C) Desmarres D) McPherson

A) Barraquer

Which of the following scissors would NOT be used for ophthalmologic procedures? A) Jorgenson B) McPherson-Vannas C) Stevens tenotomy D) Wescott

A) Jorgenson

Which of the following is a pharmacologic agent that constricts the pupil of the eye? A) acetylcholine B) atropine C) betamethasone D) viscoelastic

A) acetylcholine

What passes through the canal of Schlemm? A) aqueous humor B) vitreous humor C) lacrimal fluid D) optic nerve

A) aqueous humor

Where would a Veirs rod be placed to relieve or prevent obstruction? A) canaliculus B) choroid body C) conjunctiva D) crystalline lens

A) canaliculus

Cryotherapy uses which of the following to seal retinal tears and holes? A) cold B) heat C) monopolar current D) ultrasonic energy

A) cold

Which of the following is NOT used for visualization in ophthalmologic procedures? A) colposcope B) loupes C) microscope D) ophthalmoscope

A) colposcope

Which structure has four layers: epithelial cells, substantia propria, elastic lamina, and endothelial cells? A) cornea B) crystalline lens C) macula D) retina

A) cornea

Which of the following techniques uses a laser to treat retinal tears or proliferative diabetic retinopathy? A) endophotocoagulation B) keratoplasty C) phacoemulsification D) trephination

A) endophotocoagulation

In which of the following procedures would sutures most likely NOT be necessary? A) extracapsular cataract extraction B) intracapsular cataract extraction C) recession/resection strabismus correction D) vitrectomy with scleral buckle

A) extracapsular cataract extraction

For which surgical procedure would an Fragmatome be used? A) vitrectomy B) enucleation C) keratoplasty D) strabismus correction

A) vitrectomy

What is the portion of the eye between the cornea and the iris in which aqueous fluid flows and nourishes tissues? A) Anterior chamber B) Posterior chamber C) Fovea D) Macula

A. Anterior chamber

Which sterile irrigation fluid is used for ophthalmic procedures? A) BSS B) D5W C) H2O D) NACL

A. BSS

What is another name for the traction sutures used to manipulate the globe of the eye? A) Bridle B) Buckle C) Retention D) Tunic

A. Bridle

Which structure of the eye is the thin, transparent lining of the inner surface of the eyelid and covers the sclera? A) Conjunctiva B) Cornea C) Lens D) Limbus

A. Conjunctiva

All of the following are methods of intraocular lens insertion EXCEPT: A) Fan-folded through small incision B) Flat, original shape through larger incision C) Folded in half through medium incision D) Rolled up and passed through small tube

A. Fan-folded through small incisioin

Donor corneas must be screened for HIV, HBV, and CJD prior to transplant. A) True B) False

A. True

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. A) True B) False

A. True

Which of the following is the name of locking or nonlocking needle holders frequently used in ophthalmology? A) Bishop-Harmon B) Castroviejo C) Colibri D) Desmarres

B) Castroviejo

Which of the following represents the replacement device for the cataract lens in the eye? A) IOC B) IOL C) IOP D) IUD

B) IOL

Which procedure surgically treats glaucoma? A) enucleation B) iridectomy C) keratoplasty D) scleral buckle

B) iridectomy

Tetracaine drops are used in ophthalmologic procedures to: A) fill the posterior cavity to prevent retinal detachment B) numb the surface of the eye and surrounding structures C) irrigate the cornea to prevent drying and abrasions D) flush traumatic laceration tissue to prevent post-op SSI

B) numb the surface of the eye and surrounding structures

Which substance is used following vitrectomy for long-term support of the retina with fewer restrictions on position? A) BSS B) silicone oil C) hydroxyapatite D) perfluoropropane

B) silicone oil

What is the name of the structure that is a small depression containing only cones and has the highest visual acuity? A) Ciliary body B) Central fovea C) Choroid coat D) Crystalline lens

B. Central fovea

What is another name for a cystic structure caused by an inflammatory response to material trapped in a meibomian gland? A) Cataract B) Chalazion C) Ectropian D) Entropian

B. Chalazion

Which two structures form the external tunic of the globe of the eye? A) Pupil and iris B) Cornea and sclera C) Macula and retina D) Ciliary body and choroid coat

B. Cornea and sclera

Which of the following is the term for "crossed eyes"? A) Amblyopia B) Estropia C) Myopia D) Presbyopia

B. Estropia

What is the term for the six muscles that provide movement of the eye? A) Accessory B) Extrinsic C) Intrinsic D) Involuntary

B. Extrinsic

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. A) True B) False

B. False

Overhead OR spotlights should be placed on highest setting to provide necessary illumination during intraocular procedures. A) True B) False

B. False

Which structure of the eye is colored and its muscles constrict or relax to control the amount of light entering the pupil? A) Fovea B) Iris C) Lens D) Macula

B. Iris

Perfluoropropane and sulfur hexafluoride are used to: A) anesthetize the eye B) constrict the pupil C) keep pressure on the retina D) prevent post-op infections

C) keep pressure on the retina

A trephine is used in which ophthalmologic procedure? A) dacryocystorhinostomy B) enucleation C) keratoplasty D) strabismus correction

C) keratoplasty

How many tunics comprise the structure of the globe of the eye? A) one B) two C) three D) four

C) three

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? A) Iridectomy B) Enucleation C) Evisceration D) Recession

C. Evisceration

What is the name of the membrane that contains and encloses the vitreous humor in the posterior cavity? A) Ciliary body B) Conjunctiva C) Hyaloid D) Sclera

C. Hyaloid

Into which structures do the lacrimal ducts drain tears? A) Ethmoid sinuses B) Maxillary sinuses C) Nasal cavity D) Oropharynx

C. Nasal cavity

What is the name of the opening created in the outer tunic for insertion of the infusion cannula for excision of vitreous? A) Dacryocystorhinostomy B) Iridotomy C) Sclerotomy D) Vitrectomy

C. Sclerotomy

What structure is avascular, external, and its function is to refract light rays? A) iris B) sclera C) retina D) cornea

D) cornea

Which of the following is an inward turning of the eyelid with resulting corneal irritation? A) cataract B) chalazion C) ectropian D) entropian

D) entropian

Which procedure may be done in conjunction with vitrectomy if the surgeon is unable to gain visualization of the posterior cavity of the eye? A) enucleation B) iridectomy C) keratoplasty D) lensectomy

D) lensectomy

What is the condition of the lens that is treated by cataract extraction? A) abraded B) detached C) lacerated D) opacified

D) opacified

Which instrument is used to remove the cataract lens in preparation for intraocular lens placement? A) CUSA B) trephine C) ocutome D) phacoemulsification hand piece

D) phacoemulsification hand piece

How would a definitive diagnosis of detached retina be obtained if hemorrhage is present in the eye? A) angiography B) CT scan C) direct view with ophthalmoscope D) surgical vitrectomy

D) surgical vitrectomy

What is the name of the gelatin-like fluid that fills the posterior cavity of the eye? A) aqueous humor B) crystalline lens C) lacrimal fluid D) vitreous humor

D) vitreous humor

Which procedure involves adjusting sutures after the patient has recovered completely from anesthesia, but within 24 hours? A) Chalazion repair B) Dacryocystorhinostomy C) Entropian repair D) Recession/resection

D. Recession/resection

What kind of anesthetic block is used for a vitrectomy procedure? A) Bier B) Spinal C) Caudal D) Retrobulbar

D. Retrobulbar

Which type of needle is frequently used in ophthalmologic procedures? A) 1/2 circle blunt B) 5/8 circle taper C) Straight Keith D) Spatula

D. Spatula

The normal condition of the lens of the eye is: A) Opaque and biconcave B) Opaque and biconvex C) Transparent and biconcave D) Transparent and biconvex

D. Transparent and biconvex

Where is the lacrimal gland located? A) Lower lid, inner angle of the orbit B) Lower lid, outer angle of the orbit C) Upper lid, inner angle of the orbit D) Upper lid, outer angle of the orbit

D. Upper lid, outer angle of the orbit

Which of the following is an intraocular procedure? A) Chalazion repair B) Entropian repair C) Strabismus correction D) Vitrectomy

D. Vitrectomy