3. Acquired Maculopathies Flashcards

1
Q

What is a maculopathy?

A

Disease of the macular

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2
Q

Symptoms vs sign difference?

A

Symptom= px reports
Sign= Seen by the optom

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3
Q

What is Central Serous Retinopathy (CSR)?

A

Central defect in the retina, retinal detachment with fluid under the retina.

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4
Q

Cause of Central Serous Retinopathy (CSR)?

A

Unknown

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5
Q

Central Serous Retinopathy (CSR) is unilateral or bilateral?

A

Unilateral

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6
Q

Why does Central Serous Retinopathy (CSR) have a hyperopic shift?

A

Elevated cystic area, that shortens the axial length

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7
Q

Symptoms of Central Serous Retinopathy (CSR)?

A

Blurred vision, distortion, micropsia, positive scotoma- blob.

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8
Q

Central Serous Retinopathy (CSR) OCT and fluorescein angiography results?

A

OCT: Subretinal fluid, elevated areas, Fluorescein angiography: Leakage of blood vessels (focal leakage), in early stages hyperfluorescent spot, late pooling with dye in subretinal spaces.

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9
Q

What is idiopathic macular hole?

A

Hole in the macular, the RPE has lipofuscin dye. Usually unilateral, then becomes bilateral.

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10
Q

Cause of idiopathic macular hole?

A

Unknown. Can arise due to ageing or trauma, myopia, chronic CMO.

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11
Q

Symptoms of idiopathic macular hole?

A

Variable vision loss, metamorphopsia, jumbling of letters when reading.

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12
Q

OCT of idiopathic macular hole?

A

Splitting of photoreceptors

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13
Q

Pathogenies of of idiopathic macular hole?

A
  1. Early localized perifoveal vitreous detachment.
  2. Static and dynamic traction
  3. Open up a hole.
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14
Q

Treatment of idiopathic macular hole?

A

First stage is to wait, when VA is <6/18 and its been 1 year- vitrectomy

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15
Q

What is epiretinal membrane?

A

Scar infront of the macular (idiopathic paramacular fibrosis), caused due to posterior vitreous detachment.

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16
Q

Symptoms of epiretinal membrane?

A
  1. Reduced VA
  2. Distortion
  3. Binocular diplopia
  4. Macropsia
17
Q

Signs of epiretinal membrane?

A
  1. Glistening
  2. Crinkled sheen
  3. Contracture
18
Q

Treatment of epiretinal membrane?

A

None if asymptomatic, or else pars plana vitrectomy

19
Q

Pathogenesis of epiretinal membrane?

A

Idiopathic, after posterior vitreous detachment. Can be associated with: retinal vascular disease, venous occlusion, diabetic retinopathy, uveitis, trauma, retinal detachment.

20
Q

What is cystoid macular oedema?

A

Cystic spaces filled with fluid or oedema at the macular.

21
Q

Cause of cystoid macular oedema?

A
  1. Retinal vein occlusion
  2. Diabetic retinopathy
  3. Post cataract surgery
  4. Chronic uveitis
  5. Retinitis pigmentosa
22
Q

Pathogenesis of cystoid macular oedema?

A

Accumulation of fluid on outer plexiform later, disrupting blood-retinal barrier. Vitreous traction may be involved.

23
Q

Cystoid macular oedema on FFA & OCT?

A

FFA: Petaloid appearance
OCT: Lacuna, fluid filled microcysts, bubbles on OCT.

24
Q

Signs and symptoms of cystoid macular oedema?

A

Blur or distortion, hyperopic shift, on fundus CL: Honeycomb pattern of retinal thickness, loss of normal foveal reflex.

25
Q

Treatment of cystoid macular oedema?

A

Prevention, tropical NSAIDS and steroids to treat underlying uveitis.

26
Q

Signs & symptoms of myopic

A