EYE Flashcards

1
Q

Retinal detachment

A

Retina peels away from its supportive layer of tissue

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2
Q

Macular degeneration

A

Degeneration of macula due to aging leading to blindness

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3
Q

Optic neuritis

A

Any condition that causes inflammation of the optic nerve

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4
Q

Causes of optic neuritis

A

Demyelinating diseases
Infections

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5
Q

Meibomian cyst in the eye lid

A

Chalazion

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6
Q

Hordeolum

A

Bacterial infection of the oil gland in the eyelid

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7
Q

Inflammation of the conjunctiva

A

Conjunctivitis
Pink eye

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8
Q

Strabismus

A

Vision disorder due to misalignment of the eye

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9
Q

Glaucoma

A

Damage to optic nerve due to buildup of eye fluid and increase in intraoccular pressure

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10
Q

What is open angle glaucoma ?

A

Type of glaucoma in which the drainage angle for fluid within the eye remains open

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11
Q

Cataract

A

Eye disorder in which clouding of lens occurs

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12
Q

What are the types of refractive errors ?

A

Myopia
Presbyopia
Hypermetropia
Astigmatism

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13
Q

Myopia

A

Near sightedness
Far objects are blurry

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14
Q

Presbyopia

A

Old age vision problem when lens becomes harder and less flexible

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15
Q

Hypermetropia

A

Far sightedness
Near objects are blurry

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16
Q

Astigmatism

A

When both near and far objects are blurred due to abnormal shape of lens

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17
Q

Parts of outer layer of the eye

A

Sclera
Cornea

18
Q

What is the white part of the eye ?

19
Q

Function of sclera ?

A

Support for eye ball giving its shape, and protection.

20
Q

Transparent front part of the eye?

21
Q

Function of cornea ?

A

Refraction of light

22
Q

Which part of the eye has the highest optic power ?

23
Q

Function of conjunctiva

A

Provides protection and lubrication of the eye by production of tears and mucous

24
Q

Vascular layer of the eye?

25
Where is the choroid?
Between sclera and retina
26
Iris?
Controls the size of pupil Pigmented part of the he that determines eye colour
27
What is responsible for production of serious humor?
Ciliary body
28
Pupil?
Hole in the center of the eye which allows the light to strike the retina
29
Lens of the eye
Crystalline biconvex structure behind the iris for accommodation of the eye. It allows light to fall on the retina.
30
Function of suspension ligament
Allows lens to attach to the ciliary body
31
Retina
Light sensitive nervous area connected to the brain by the optic nerve
32
Photoreceptors of the retina
ROD - less intense light CONE - colour, bright light
33
Chambers of the eye
Aqueous chamber Vitreous chamber
34
Location of aqueous chamber
Anterior - between iris and cornea Posterior - between iris and lens
35
Location of vitreous chamber
Between lens and retina
36
Which eye fluid is produced by ciliary body?
Aqueous humor
37
Macula lutea
Yellow spot in the central region of retina Contains most cones and some rods
38
Forea centralis
Eye sharpest vision and location of most colour perception because of high concentration of cones Located in the center of macula Only cones no rods
39
Blind spot / optic disc
Place where optic nerve connects retina
40
Why is optic disc called blind spot ?
Total absence of cons and rods
41
Correct visual perception is when focal point is on what structure of the eye?
Retina Inverted image formed