Unit 6 - Retinal detachments Flashcards

1
Q

What are the risk factors for developing a retinal detachment?

A
  1. Myopia
  2. Cataract surgery
  3. Trauma
  4. ROP
  5. Stickler’s syndrome
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2
Q

What are the symptoms of PVD?

A
  1. Temporal flashes, monochromatic
  2. Small black dots - blood
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3
Q

What conditions should be considered in young patients complaining of constant photpsia?

A

MEWDS
AZOOR

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4
Q

What types of RD are there?

A
  1. Rhegmatogenous (associated with a tear)
  2. Exudative (due to inflammation)
  3. Tractional either PVD or PVR (post RD surgery)
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5
Q

What two types of surgery are used?

A
  1. Vitrectomy
  2. Buckling
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6
Q

What proportion of symptomatic PVDs will have a tear?

A

25%
College of Optometry says 10-15%

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7
Q

What are the 5 causes of tears?

A
  1. PVD (99%)
  2. Trauma (globe compression in young)
  3. Pathology i.e. CMV, ARN
  4. Myopic round holes
  5. Traction (DR, macular hole)
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8
Q

What proportion of symptomatic breaks will lead to a RD?

A

50%

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9
Q

What are the steps in RD surgery?

A
  1. Port insertion
  2. Infusion
  3. Vitrectomy
  4. Treatment
  5. Search
  6. Tamponade
  7. Remove ports
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10
Q

How long does it take for retinal cryotherapy, cautery or laser to glue retina together?

A

Scar takes 7-10 days to form

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11
Q

How long does air last in the air when used as a tamponade?

A

1 week

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12
Q

How long does SF6 and C3F8 last in the eye as a tamponade?

A

SF6 - upto 3 months
C3F8 - 3 months

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