Chapter 16 Eyes Exam Flashcards
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
What kind of anesthetic block is used for a vitrectomy procedure?
a) Bier
b) spinal
c) caudal
d) retrobulbar
d) retrobulbar
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
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
A trephine is used in which ophthalmologic procedure?
a) dacryocystorhinostomy
b) enucleation
c) keratoplasty
d) strabismus correction
c) keratoplasty
Which sterile irrigation fluid is used for ophthalmic procedures?
a) BSS
b) D5W
c) H2O
d) NACL
a) BSS
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
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 of the following represents the replacement device for the cataract lens in the eye?
a) IOC
b) IOL
c) IOP
d) IUD
b) IOL
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
Into which structures do the lacrimal ducts drain tears?
a) ethmoid sinuses
b) maxillary sinuses
c) nasal cavity
d) oropharynx
c) nasal cavity
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
b) enucleation
Which procedure surgically treats glaucoma?
a) enucleation
b) iridectomy
c) keratoplasty
d) scleral buckle
b) iridectomy
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
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 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 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
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 scissors would NOT be used for ophthalmologic procedures?
a) Jorgenson
b) McPherson-Vannas
c) Stevens tenotomy
d) Wescott
a) Jorgenson
What passes through the canal of Schlemm?
a) aqueous humor
b) vitreous humor
c) lacrimal fluid
d) optic nerve
a) aqueous humor
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