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III. Advanced Contact Lenses > Therapeutic, Prosthetic and Cosmetic CL's (F) > Flashcards

Therapeutic, Prosthetic and Cosmetic CL's (F) Flashcards

1
Q

What is the IOP monitoring contact lens?

A

Triggerfish

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2
Q

What is it called when there is a minimum price that you can sell the CL product after any discounts?

A

universal pricing policy (UPP)

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3
Q

What are some of the corneal endothelial defects that can be treated with a therapeutic contact lens? 1. What characteristics are needed for this lens? 2

A
  1. Fuch’s dystrophy, Pseudophakic bullos keratopathy, hydrops
  2. thick, high H2O content CL
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4
Q

What are the benefits using an amniotic membrane?

A
  1. promotes epithelialization
  2. suppress inflammation
  3. inhibits scarring
  4. inhibits angiogenesis
  5. anti microbial agent
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5
Q

What are the contraindications of therapeutic contact lenses?

A
  1. active microbial infection
  2. non compliant patient
  3. poor personal hygiene
  4. dry eyes
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6
Q

Are scleral lenses able to be used as bandage lenses?

A

yes

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7
Q

What are the possible complications of therapeutic bandage contact lenses?

A
  1. irritation and discomfort from BCL
  2. CL infiltrative event
  3. displacement of CL
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8
Q

What are the FDA approved therapeutic SiHy’s?

A
  1. Air Optix Night and Day
  2. PureVision
  3. Oasys
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9
Q

What is the cryopreserved amniotic membrane?

A

ProKera

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10
Q

What are the indications for using an amniotic membrane?

A
  1. Chemical/thermal burns
  2. Recurrent corneal erosions
  3. Neurotrophic persistent corneal epithelial defects
  4. Filamentary keratitis
  5. Recalcitrant dry eye
  6. Corneal neovascularization
  7. Acute Stevens-Johnson Syndrome
  8. Post infection recalcitrant corneal inflammation
  9. Post surgical healing
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11
Q

What characteristics of a therapeutic contact lens is best for post-PRK, -PTK, or -LASEK?

A
  1. thin

2. high H2O content

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12
Q

What does the collagen shield do for a drug delivery contact lens?

A
  1. holds medicine solution
  2. dissolves in 12 to 36hrs
  3. reduces VA 20/80 to 20/200
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13
Q

What are some of the chronic epithelial defects that can be treated with a therapeutic contact lens?

A
  1. Herpes
  2. chemical burns
  3. Stevens-Johnson syndrome
  4. neurotrophic keratitis
  5. Thygeson’s SPK
  6. GVHD
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14
Q

What are the current issues with drug delivery contact lenses?

A

release not sustained over 1hr

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15
Q

What is used to clean GP lenses that have been plasma treated?

A

Boston Simplus or Lobob Optimum

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16
Q

What is the soft CL that accentuates the limbal ring?

A

Acuvue 1 Day Define

17
Q

What are some of the types of anatomical mechanical trauma that can be treated with a therapeutic contact lens?

A
  1. trichiasis
  2. entropion
  3. exposed sutures
  4. keratinized lid margins
  5. giant papillae
18
Q

Does the epithelium heal faster with silicone hydrogels or hydrogels?

A

SiHys

19
Q

What are the indications of therapeutic contact lenses?

A
  1. reduce pain
  2. heal epithelial defects
  3. protect from dryness or filamentary keratitis
  4. seal wounds and perforations
  5. deliver drugs to anterior segment
20
Q

What are the goals of therapeutic contact lens to help treat corneal erosions? 1. What should it be used with? 2

A
  1. reduce pain, promote healing, smooth optical surface

2. NSAIDs

21
Q

What are the fitting suggestions for a therapeutic contact lens?

A
  1. movement less than cosmetic fitting
  2. error on the side of large diameter and steep BC
  3. minimize lens thickness

III. Advanced Contact Lenses (16 decks)

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