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ST3 > Week 10 - Ophthalmic Surgery > Flashcards

Week 10 - Ophthalmic Surgery Flashcards

1
Q

Accommodation

A

process of focusing

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2
Q

Brindle suture

A

temporary traction suture place through the sclera used to pull the globe laterally for exposure

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3
Q

Cataract

A

clouding of vision caused by crystalline lens of the eye, it’s capsule, or both become opaque

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4
Q

Cryotherapy

A

cold probe is used to freeze tissue

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5
Q

Diathermy

A

low-power cautery used to mark the sclera over an area of retina detachment

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6
Q

Enucleation

A

surgical removal of the globe and accessory attachments

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7
Q

Eviseration

A

surgical removal of the contents of the orbit

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8
Q

Exenteration

A

removal of the entire contents of the orbit

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9
Q

Focal point

A

point where light rays converge and after passing through a lens

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10
Q

Glaucoma

A

elevation of the IOP

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11
Q

Keratoplasty

A

sx of the cornea

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12
Q

Muscle recession

A

sx performed to reposition eye muscle to release the globe

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13
Q

Muscle resection

A

sx performed to shorten the eye muscle to pull the globe into the correct position

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14
Q

Phacoemulsification

A

high frequency sound waves are used to emulsify tissue

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15
Q

Pterygium

A

triangular membrane that arises from the medial canthus

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16
Q

Refraction

A

light rays are bent as they pass through a transparent medium that is denser than air

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17
Q

Spatula needle

A

flat-tipped suture needle

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18
Q

Strabismus

A

inability to coordinate the extraocular muscles

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19
Q

1% Atropine

A

mydriatic, dilator

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20
Q

Epinephrine 1:100,000 (preservative free)

A

mydriatic, added to BSS during phaco

21
Q

Pilocarpine hydrochloride (1%, 4%)

A

miotic, duration 10 - 20 min

22
Q

Tetracaine hydrochloride (0.05%)

A

topical anesthetic

23
Q

Lidocaine (1%, 2%, 4%)

A

injectable anesthetic, duration 40 - 60 min, 120 min with epi

24
Q

Bupivacaine (0.25%, 0.05%, 0.75%)

A

injectable anesthetic, duration 8 - 12 hours with epi

25
Q

Epinephrine (1:50,000, 1:200,000)

A

additive to local anesthetic to prolong anesthesia and reduce bleeding

26
Q

Viscoelastics

A

lubricant and support, maintains anterior chamber intraocularly

27
Q

Balanced salt solution (BSS)

A

irrigant, used topically or intraocularly

28
Q

Betamethasone sodium phosphate (Celestone)

A

anti-inflammatory (glucocorticoid), injected subconj

29
Q

Besamethasone (Decadron)

A

adenocorticosteroid; injected subconj

30
Q

Gentamicin sulfate

A

antibiotic, injected subconj, topical

31
Q

Cocaine (1% - 4%)

A

used topically only, used on cornea to loosen epithelium before debridement

32
Q

Mitomycin

A

antimetabolitic (sp), used topically to inhibit scar formation in glaucoma filtering procedures and pteygium excision

33
Q

Repair of an entropion

A

repair of an abnormal inversion of the lower eyelid

34
Q

Repair of an ectropion

A

repair of drooping of the lower eyelid

35
Q

Dacryocystorhinostomy

A

creation of a permanent opening in the tear duct for drainage of tears

36
Q

Lacrimal duct probing

A

lacrimal duct opened and obstruction removed

37
Q

Muscle resection and recession

A

performed to correct strabismus

38
Q

Penetrating keratoplasty

A

corneal transplantation

39
Q

LASIK (Laser-assisted in situ keratomileusis)

A

performed to shape the curvature of the cornea and correct a refractory problem

40
Q

Extracapsular cataract extraction

A

phacoemulsification

41
Q

Anterior vitrectomy

A

performed to remove vitreous from anterior chamber

42
Q

Scleral buckling

A

resorting layers of retina to their normal positions and prevent blindness

43
Q

Orbital decompression

A

one or more bony section of orbital cavity are removed to reduce pressure on the optic nerve

44
Q

Argon laser trabeculoplasty

A

argon laser is used to shrink collagen and stretch the canal of Schlemm, therefore expanding the canal increasing drainage and reducing IOP

45
Q

Orbital exenteration

A

removal of the entire eye and orbital contents (incl. eyelids, ocular muscles, and orbital fat); tx for cancer

46
Q

A-scan

A

ophthalmic ultrasonography; depicts tissue density as amplitude on two axes

47
Q

Excision of a chalazion

A

removal of nodal tissue arising from sebacous gland; excised from tarsal plate

48
Q

IOP (intraocular pressure)

A

fluid pressure inside the eye

49
Q

IOL (intraocular lens)

A

replacement lens (implant)

ST3 (15 decks)

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