Deck 16: Ophthalmic Surgery

Question 1

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

A) Bier
B) spinal
C) caudal
D) retrobulbar

Answer 1

D

Question 2

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

A) acetylcholine
B) atropine
C) betamethasone
D) viscoelastic

Answer 2

A

Question 3

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

Answer 3

C

Question 4

Which procedure surgically treats glaucoma?

A) enucleation
B) iridectomy
C) keratoplasty
D) scleral buckle

Question 5

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

Question 6

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

Question 7

Which sterile irrigation fluid is used for ophthalmic procedures?

A) BSS
B) D₅W
C) H₂O
D) NACL

Question 8

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

Question 9

What passes through the canal of Schlemm?

A) aqueous humor
B) vitreous humor
C) lacrimal fluid
D) optic nerve

Question 10

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

Question 11

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

A) cones
B) fovea
C) rods
D) macula

Question 12

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

Question 13

Into which structures do the lacrimal ducts drain tears?

A) ethmoid sinuses
B) maxillary sinuses
C) nasal cavity
D) oropharynx

Question 14

A trephine is used in which ophthalmologic procedure?

A) dacryocystorhinostomy
B) enucleation
C) keratoplasty
D) strabismus correction

Question 15

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

A) cataract
B) chalazion
C) ectropian
D) entropian

Question 16

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

A) IOC
B) IOL
C) IOP
D) IUD

Question 17

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

A) Jorgenson
B) McPherson-Vannas
C) Stevens tenotomy
D) Wescott

Question 18

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

Question 19

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

Question 20

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

A) bridle
B) buckle
C) retention
D) tunic

Question 21

Misalignment or deviation from coordinated movement of the eyes is:

A) astigmatism
B) macular degeneration.
C) retinal detachment
D) strabismus

Question 22

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

Question 23

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

Question 24

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

A) one
B) two
C) three
D) four

Question 25

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

Question 26

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

Question 27

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

A) Barraquer
B) Castroviejo
C) Desmarres
D) McPherson

Question 28

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

A) abraded
B) detached
C) lacerated
D) opacified

Question 29

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

A) canaliculus
B) choroid body
C) conjunctiva
D) crystalline lens

Question 30

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

Question 31

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

Question 32

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

Question 33

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

Question 34

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

Question 35

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

Question 36

Which of the following is the term for "crossed eyes"?

A) amblyopia
B) estropia
C) myopia
D) presbyopia

Question 37

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

A) colposcope
B) loupes
C) microscope
D) ophthalmoscope

Question 38

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

Question 39

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

Question 40

For which surgical procedure would an Ocutome be used?

A) vitrectomy
B) enucleation
C) keratoplasty
D) strabismus correction

Question 42

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

Question 43

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

Question 44

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.

Question 45

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

Question 46

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

A) cold
B) heat
C) monopolar current
D) ultrasonic energy

Question 47

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

Question 48

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.

Question 49

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

Question 50

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

Question 51

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

A) accessory
B) extrinsic
C) intrinsic
D) involuntary

Question 52

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

Question 53

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

A) iris
B) sclera
C) retina
D) cornea

Question 54

Which of the following is an intraocular procedure?

A) chalazion repair
B) entropian repair
C) strabismus correction
D) vitrectomy

Question 55

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

A) endophotocoagulation
B) keratoplasty
C) phacoemulsification
D) trephination

Question 56

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

A) cornea
B) crystalline lens
C) macula
D) retina