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2nd Sem > P2 - Prosthesis > Flashcards

P2 - Prosthesis Flashcards

1
Q

What are the common ocular diseases that causes removal of eyeball

A

Eye tumor
Choroidal melanoma
Retinoblastoma
End stage glaucoma
Phthisis bulbi
Anophthalmos
Micophthalmos
Perforation of the cornea
Atrophy of the eyeball
Eye trauma/injury

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2
Q

a collection of cells that grows abnormally, and can be malignant (cancerous) or benign (noncancerous)

A

Eye tumor (Ocular tumors)

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3
Q

2 types of eye tumor

A
  • Metastatic ocular tumor
  • Ocular melanoma
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4
Q

common type of eye tumor, secondary tumor caused by cancer that has spread from one part of the body to another

A

Metastatic Ocular Tumor

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5
Q

Metastatic ocular tumor often comes from which parts of the body

A

Lung, breast, bowel or prostate

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6
Q

the most common primary adult tumor that forms in the eye

A

Ocular melanoma

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7
Q

Ocular melanoma other names

A

Uveal melanoma and Choroidal melanoma

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8
Q

it forms from the pigmented cells in the eye and occurs in three main areas of the eye

A

Ocular melanoma

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9
Q

Ocular melanoma occurs in which three main areas of the eye

A

Iris
Ciliary body
Choroid

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10
Q

Types of Ocular surgery in removing the eyeball

A

Enucleation
Evisceration
Exenteration

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11
Q

type of craniofacial prosthesis that replaces an absent natural eye following enucleation, evisceration, or orbital exenteration

A

Ocular prosthesis

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12
Q

a permanent solid spherical implant (ball), placed deep within the socket to compensate for the loss of volume

A

Orbital implant

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13
Q

In orbital implant, the ______ which moves the eye are reattached to this implant

A

muscles

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14
Q

Orbital implant: ___________ (including conjunctiva) are stitched over the front surface of this implant which remains permanently covered

A

Superficial membranes

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15
Q

complete removal of the eyeball preserving all orbital structure

A

Enucleation

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16
Q

this involves removal of the entire eyeball (includes sclera)

A

Enucleation

17
Q

Indication for Enucleation (EPMP)

A
  • Endophthalmitis - unresponsive to antibiotics
  • Painful eyes with no useful vision
  • Malignant intraocular tumors
  • Phthisis bulbi with degeneration
18
Q

complete removal of the contents of the eye (cornea, iris, crystalline lens, retina) with retention of sclera & EOM

A

Evisceration

19
Q

In Evisceration, what contents of the eye are removed

A

Cornea
Iris
Crystalline lens
Retina

20
Q

Evisceration: sclera is not removed but used as a ________

A

natural wrapping material to cover ball implant

21
Q

this operation is easier to perform but cannot be undertaken for patients who have eye tumor

A

Evisceration

22
Q

Advantage of Evisceration

A
  • Easier to perform
  • Fast recovery for patient
23
Q

Indication for Evisceration (EI)

A
  • Endophthalmitis
  • Improvement of cosmetics in the blind eye
24
Q

removal of the entire orbital contents (eye, eyelids, bony orbit)

A

Exenteration

25
Q

surgical removal of the eyeball and surrounding tissues, including eyelids (extent depends on disease being treated)

A

Exenteration

26
Q

Indication for Exenteration

A

Large eye tumor

27
Q

Types of Prosthetic Eye

A
  • Scleral Cover Ocular Prosthesis
  • Orbital Prosthesis
28
Q

specific type of ocular prosthesis that is fit and fabricated over the person’s existing eye

A

Scleral Cover ocular prosthesis

29
Q

these prosthesis cover the entire surface of a cosmetically blemished eye, restoring the eye to its natural appearance

30
Q

Primary function of SCOP

A

To replace the volume deficiency of the smaller than normal eye

31
Q

SCOP: Lack of eyelid support will result to

A
  • Narrowing of the eyelid opening
  • Superior eyelid ptosis
32
Q

Benefits/advantage of SCOP (PPRPM)

A
  • Prevent surgical disruption (evisceration/enucleation) of the orbital contents
  • Prevent pseudo blepharoptosis (sagging upper eyelid) caused by global volume loss (phthisis)
  • Reduce ectropion by providing support to a prolapsed lower eyelid
  • Prosthetic eye moves together with the other eye
  • More affordable
33
Q

type of customized ocular prosthesis that replaces removed facial structure due to condition such as Large Eye tumor via Exenteration

A

Orbital Prosthesis

34
Q

restores the appearance of the eyeball & eyelids & may include eyebrow, part of the forehead, nose, or cheek.

A

Orbital prosthesis

35
Q

Primary function of Orbital prosthesis

A

Serves as a major morale booster in these patients by combating the physical and emotional

36
Q

Advantages of Orbital prosthesis

A

Symmetrical facial structure

37
Q

Disadvantage of orbital prosthesis

A
  • Eye does not move together with other eye when looking up, down, side to side
  • Asymmetrical facial expression
  • Expensive

2nd Sem (3 decks)

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