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