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Chapter 16: Eyes
| Question | Answer |
|---|---|
| Which retinal structure allows for perception of general shapes and shades of gray in dim light? | Rods |
| What kind of anesthetic block is used for a vitrectomy procedure? | Retrobulbar |
| Perfluoropropane and sulfur huexafluoride are used to: | Keep pressure on the retina |
| Which of the is a pharmacologic agent that constricts the pupil of the eye? | Acetylcholine |
| A trephine is used in which ophthalmologic procedure? | Keratoplasty |
| Which sterile irrigation fluid is used for ophthalmic procedures? | BSS |
| The normal condition of the lens of the eye is | Transparent biconvex |
| What is another name for the tracture structures used to manipulate the globe of the eye? | Bridle |
| Which of the following represents the replacement device for cataract lens in the eye? | IOL |
| Where is the lacrimal gland located? | Upper lid, outer angle of the orbit |
| Into which structures do the lacrimal ducts drain tears? | Nasal cavity |
| Which procedure done on an eye with internal malfunction or loss of contents and no possible recovery of sight procedures better mobility and cosmetic result with a prosthetic eye? | Evisceration |
| Which procedure surgically treats glaucoma? | Iridectomy |
| What is the portion of the eye between the cornea and the iris in which aqueous fluid flows and nourishes the tissues? | Anterior chamber |
| What is another name for a cystic structure caused by inflammatory response to material trapped in a meibomian gland? | Chalazion |
| Which of the following is an inward turning of the eyelid with resulting corneal irritation? | Entropian |
| Which instrument is used to remove the cataract lens in preparation for intraocular lens placement? | Phacoemulsification hand piece |
| Which of the following is the name of locking or non locking needle holders frequently used in ophthalmology? | Castroviejo |
| Which of the following scissors would not be used for ophthalmologic procedures? | Jorgenson |
| What passes through the canal of Schlemm? | Aqueous humor |
| Misalignment or deviation from coordinated movement of the eyes is: | Strabismus |
| If looking at the right eye of the patient and assigning clock positions of 12, 3, 6 and 9 o'clock to the rectus eye muscles, which the following could be correct: | 12= superior 3= medical 6= inferior 9= lateral |
| Which of the following is the term for "crossed eyes"? | Esotropia |
| Which structure of the eye is colored and its muscles constrict or relax to control the amount of light entering the pupil? | Iris |
| How many tunics compromise the structure of the globe of the eye? | 3 |
| Which two structures form the outer tunic of the globe of the eye? | Cornea and sclera |
| Which procedure involves structures after the patient has recovered completely from anesthesia but within 24 hours? | Recession/resection |
| Which structure of the eye is the thin, transparent lining of the inner surface of the eyelid and covers the sclera? | Conjunctiva |
| Which of the following is not used for visualization in ophthalmologic procedures? | Colposcope |
| Which of the following names represents an eye speculum that resembles an uncoiled metal paper clip? | Barraquer |
| All of the following are methods of intraocular lens insertion EXCEPT: | Fan-folded through small incision |
| How would a definitive diagnosis of detached retina be obtained if hemorrhage is present in the eye? | Surgical vitrectomy |
| What is the name of the gelatin-like fluid that fills the posterior cavity of the eye? | Vitreous humor |
| For which surgical procedure would a fragmatome be used? | Vitrectomy |
| Which substance is used following vitrectomy for long-term support of the retina with fewer restrictions on position? | Silicone oil |
| What is the name of the membrane that contains and encloses the vitreous humor in the posterior cavity? | Hyaloid |
| Where would a viers rod be placed to relieve or prevent obstruction? | Canaliculus |
| What is the condition of the lens that is treated by cataract extraction? | Opacified |
| In which of the following procedures would sutures most likely not be necessary? | Extracapsular cataract extraction |
| What is the name of the opening created in the outer tunic for insertion of the infusion cannula for excision of vitreous | Sclerotomy |
| What is the name of the structure that is a small depression containing only cones and has the highest visual acuity? | Central fovea |
| Tetracaine drops are used in ophthalmologic procedures to: | numb the surface of the eye and surrounding structures |
| Which of the following techniques uses a laser to treat retinal tears or proliferative diabetic retinopathy? | endophotocoagulation |
| Which procedure may be done in conjunction with vitrectomy if the surgeon is unable to gain visualization of the posterior cavity of the eye? | Lensectomy |
| What is the term for the six muscles that provide movement of the eye? | Extrinsic |
| Which of the following is an intraocular procedure? | Vitrectomy |
| What structure is avascular, external and its function is to refract light rays? | Cornea |
| Which structure has four layers: epithelial cells, substantia, propria, elastic lamina and endothelial cells? | Cornea |
| Which type of needle is frequently used in ophthalmologic procedures? | 3/8 circle spatula |
| Cryotherapy uses which of the following to seal retinal tears and holes | Cold |
Created by:
Vpoehlein