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65 Cards in this Set
- Front
- Back
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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
p. 610 - Rods allow for seeing shades of gray in dim light and general shapes or outlines. |
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What kind of anesthetic block is used for a vitrectomy procedure?
a. Bier b. spinal c. caudal d. retrobulbar |
d. retrobulbar
p. 625 |
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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
p. 612 C3F8 (perfluoropropane) SF6 (sulfur hexafluoride) gas |
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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
p. 224 |
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A trephine is used in which ophthalmologic procedure?
a. dacryocystorhinostomy b. enucleation c. keratoplasty d. strabismus correction |
c. keratoplasty
p. 618 |
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Which sterile irrigation fluid is used for ophthalmic procedures? a. BSS b. D5W c. H2O d. NaCl |
a. BSS
p. 599 |
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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 bioconvex
p. 622 |
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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
p. 623 |
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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
p. 622 - intraocular lens implant |
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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
p. 613 |
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Into which structures do the lacrimal ducts drain tears?
a. ethmoid sinuses b. maxillary sinuses c. nasal cavity d. oropharynx |
c. nasal cavity
p. 613 |
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Which procedure done on an eye with internal malfunction or loss of contents and no possible recovery of sight provides better mobility and cosmetic results with a prosthetic eye?
a. iridectomy b. enucleation c. evisceration d. recession |
c. evisceration
p. 616 |
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Which procedure surgically treats glaucoma?
a. enucleation b. iridectomy c. keratoplasty d. scleral buckle |
b. iridectomy
p. 603 |
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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
p. 603 |
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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. ectropion d. entropion |
b. chalazion
p. 600 |
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Which of the following is an inward turning of the eyelid with resulting corneal irritation? a. cataract b. chalazion c. ectropion d. entropion |
d. entropion
p. 601 - entropion, abnormal inversion of the lower lid margins, causes the eyelashes to rub against the cornea, resulting in irritation, pain, and chronic tears. |
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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
p. 623 |
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Which of the following is the name of locking or non-locking needle holders frequently used in ophthalmology?
a. Bishop-Harmon b. Castroviejo c. Colibri d. Desmarres |
b. Castroviejo
p. 596 |
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Which of the following scissors would NOT be used for ophthalmologic procedures?
a. Jorgenson b. McPherson-Vannas c. Stevens tenotomy d. Wescott |
a. Jorgenson
p. 597, 602 |
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What passes through the canal of Schlemm?
a. aqueous humor b. vitreous humor c. lacrimal fluid d. optic nerve |
a. aqueous humor
p. 603 |
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Misalignment or deviation from coordinated movement of the eyes is:
a. astigmatism b. macular degeneration c. retinal detachment d. strabismus |
d. strabismus
p. 607 |
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If looking at the right eye of a patient and assigning clock position 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
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a. 12=superior; 3=medial; 6=inferior; 9=lateral
p. 607, figure 16-3 |
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Which of the following is the term for "crossed eyes"? a. amblyopia b. esotropia c. myopia d. presbyopia |
b. esotropia
p. 608 - Various forms of strabismus include “crossed eyes” (esotropia) , “wall eyes” (exotropia), and “lazy eye” (amblyopic). |
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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
p. 603 |
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How many tunics comprise the structure of the globe of the eye?
a. one b. two c. three d. four |
c. three
p. 610 - nervous p. 618 - fibrous p. 624 - vascular |
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Which two structures form the outer 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
p. 618 |
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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
p. 606-610 |
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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
p. 611 |
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Which of the following is NOT used for visualization in ophthalmologic procedures?
a. colposcope b. loupes c. microscope d. opthalmoscope |
a. colposcope
p. 603 |
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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
p. 605 |
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All of the following are methods of intraocular lens insertion EXCEPT?
a. fan-folded through small incision b. flat, original shape through medium incision c. folded in half through medium incision d. rolled up and passed through small tube |
a. fan-folded through small incision
p. 622-623 |
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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 opthalmoscope d. surgical vitrectomy |
d. surgical vitrectomy
p. 624 |
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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
p. 624 |
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For which surgical procedure would an Ocutome be used?
a. vitrectomy b. enucleation c. keratoplasty d. strabismus correction |
a. vitrectomy
p. 624 |
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Which substance is used following vitrecomy for long-term support of the retina with fewer restrictions on position?
a. BSS b. silicone oil c. hydroxyapatite d. perfluoropropane |
b. silicone oil
p. 625 |
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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
p. 624 |
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Where would a Veirs rod be placed to relieve or prevent obstruction?
a. canaliculus b. choroid body c. conjunctiva d. drystalline lens |
a. canaliculus
p. 628 |
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What is the condition of the lens that is treated by cataract extraction?
a. abraded b. detached c. lacerated d. opacified |
d. opacified
p. 622 |
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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
p. 622 |
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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
p. 626 |
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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
p. 610 |
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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
p. 615 |
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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
p. 626 |
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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
p. 626 - Lensectomy is the removal of the eye’s crystalline lens during a vitrectomy procedure. |
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What is the term for the six muscles that provides movement of the eye?
a. accessory b. extrinsic c. intrinsic d. involuntary |
b. extrinsic
p. 606-607 |
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Which of the following is an intraocular procedure?
a. chalazion repair b. entropian repair c. strabismus correction d. vitrectomy |
d. vitrectomy
p. 624-625 |
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What structure is avascular, external, and its function is to refract light rays? a. iris b. sclera c. retina d. cornea |
d. cornea
p. 618 |
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What structure has four layers: epithelial cells, substantia propria, elastic lamina, and endothelial cells?
a. cornea b. crystalline lens c. macula d. retina |
a. cornea
p. 618 |
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Which type of needle is frequently used in ophthalmologic procedures?
a. 1/2 circle blunt b. 5/8 circle taper c. straight Keith d. 3/8 circle spatula |
d. 3/8 circle spatula
p. 599 |
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Crypotherapy uses which of the following to seal retinal tears and holes?
a. cold b. heat c. monopolar current d. ultrasonic energy |
a. cold
p. 598 |
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Type of drape with rounded fenestration and adhesive backing, used when procedure involves globe of eye
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c. Aperture
p. 599 |
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Type of drape with "U" configuration and adhesive edged "legs"; used for procedures requiring broader access to extraocular areas
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f. Split
p. 599 |
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Thick connective tissue structure that provides integrity to shape of the eyelid; may be repositioned in entropian repair
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i. Tarsal plate
p. 600 |
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Angular junction of eyelid at either corner of eye
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d. Canthus
p. 601 |
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Porous, circumferential band of tiny canals through which the aqueous humor drains
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j. Trabecular meshwork
p. 603 |
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Name of line of miniscapel blades used in opthalmology and ENT
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b. Beaver
p. 597 |
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Visual defect in which one object is seen in duplicate; treated with adjustable suture technique of strabismus correction
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g. Diplopia
p. 608 |
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Variable-rate, reciprocating, and cutting-tip hand piece attached to suction
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e. Vitrector
p. 625 |
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Unit of measurement of optical power of magnifying lens
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a. Diopter
p. 611 |
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Hereditary, progressive, noninflammatory disease of the anterior surface of eye; diagnostic indication for keratoplasty
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h. Corneal dystrophy
p. 618 |
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Overhead OR spotlights should be placed on highest setting to provide necessary illumination during intraocular procedures.
True or False |
False
p. 624 |
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Donor corneas must be screened for HIV, HBV, and CJD prior to transplant.
True or False |
True p. 619 |
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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.
True or False |
True
p. 596 |
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Cataracts are categorized as a general condition of aging rather than a disease process.
True or False |
True
p. 622 |
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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.
True or False |
False
p. 625 |
