causes of LOW VISION Flashcards

1
Q

a patient having macular diseases will experience the ff:

A

Central vision loss

Color vision defect

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2
Q

a child with retinoblastoma will experience the ff:

A

Amaurotic Cat’s eye

Clumsy

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3
Q

the presence of silver-wire arterial reflex is observed in what grade of hypertensive retinopathy

A

Grade 3

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4
Q

the presence of copper-wire arterial reflex is observed in what grade of Hypertensive retinopathy

A

Grade - 2

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5
Q

Demarcation line is observed in what stage of Retinopathy of Prematurity:

A

Grade - 1

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6
Q

this type of hemorrhage located between vitreous and retina:

A

Pre-Retinal

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7
Q

This is a type of hemorrhage found between choroid and retina

A

Sub-retinal

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8
Q

There are two types of diabetic retinopathy, namely:

A

Proliferative, Non-Proliferative

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9
Q

There are two types of macular degeneration, namely:

A

Wet, Dry

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10
Q

This is the end stage of Retinopathy of Prematurity

A

Total Retinal detachment

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11
Q

This is a characteristic of Retinopathy of Prematurity

A

demarcation line

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12
Q

The ff. are the characteristics of retinitis pigmentosa

A
  • Bone spicule scattered at the peripheral fundus
  • Tubular visual field
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13
Q

It is a proliferative vascular disease that occurs after birth in low-birthweight and premature infants in whom the retinal vasculature is not fully developed

A

ROP

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14
Q

characteristics of retinoblastoma

A

It is characterized by the creamy pink, flat or elevated tumor on the retinal surface with chalky white calcium deposits

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15
Q

characteristics of toxoplasmosis

A
  • It is characterized by the presence of yellow-green scar about 3dd with black pigmentation
  • It is a parasitic retinopathy caused by an intracellular protozoan parasite
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16
Q

It is a degenerative disorder characterized by a slowly progressive deterioration of the cones and rods *

A

Cone-Rod Dystrophy

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17
Q

It is the separation of the retina at the macula

A

Macular detachment

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18
Q

It is a focal depression on the macula

A

Macular Hole

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19
Q

It is a thickening of the retina in the macular area extending within 1dd from the fovea centralis which is usually occurring after fluid accumulation

A

macular Edema

20
Q

It is a degenerative lesion of the macula associated with aging

A

Macular Degeneration

21
Q

A child with retinoblastoma will exhibit:

A

Leukocoria

22
Q

A person with retinitis pigmentosa will exhibit the ff. in his ocular fundus

A
  • Bone spicules at the peripheral fundus
  • arterial attenuation
23
Q

Peripheral vision problem is seen in the ff. ocular diseases

A
  • Retinitis pigmentosa
  • Glaucoma
24
Q

Blood and thunder fundus is seen in:

25
Salt and pepper appearance of fundus is seen in
retinitis pigmentosa
26
Rhegmatogenous retinal detachment is due to
retinal break
27
The most common intraocular tumour in children is
retinoblastoma
28
The ff. are the structures of the posterior segment of the eye
Fovea Centralis, Macula, Optic disc, Retina
29
clinical signs of retinitis pigmentosa
Threadlike arteries
30
clinical signs of hypertensive retinopathy
* Threadlike arteries * Presence of hemorrhages
31
clinical signs of diabetic retinopathy
* Presence of hemorrhages * increased tortuosity of veins
32
The **distinguishing** characteristic of **proliferative diabetic retinopathy** is
Neovascularization of the optic disc
33
The distinguishing characteristic of wet macular degeneration is
Neovascularization of the macula
34
In retinal detachment, the separation occurs between
RPE and Photoreceptor layer
35
This is a condition where there is separation of the two retinal layers, the retina proper and the pigmentary epithelium by the subretinal fluid
Retinal Detachment
36
It is always due to a break in the retina in the form of a hole or tear. This allows the fluid from the vitreous to seep through and raise the retina from its bed \*
Rhegmatogenous
37
Peculiar yellow or white pupillary reflex called the “amaurotic cat’s eye” is usually noticed by the parents
Leukocoria
38
There is obstruction to the venous circulation of the retina due to thrombosis or embolus
Central Retinal Vein Occlusion CRVO
39
It refers to the inflammation of the internal structures of the eye
Endophthalmitis
40
This is the purulent inflammation of all the structures of the eye
Panophthalmitis
41
It is the accumulation of fluid or hemorrhages in the macular area in a star-like pattern
Macular Star
42
It is the post nasal myelination of optic nerve
Myelinated nerve fiber
43
This is a **semi-lunar** white yellow patch located temporally and inferiorly
Crescent
44
The ff. are true about diabetic retinopathy
* Associated with diabetes mellitus * presence of soft and hard exudates * Retinal vascular disease
45
The ff. are true about hypertensive retinopathy
* Arteries present copper and silver wire reflex * Associated with systemic disease * Straightening of the blood vessels
46
A condition in which half of the visual field is blind
Hemianopsia
47
This a quadrant loss of the visual field
quadrantanopsia