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Year 4 Ophthalmology > Eye drops > Flashcards

Eye drops Flashcards

1
Q

Dose of atropine drops

A

0.5%

1%

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2
Q

Mechanism of atropine drops

A

Parasympathetic inhibition (anticholinergic)

Dilates the pupil as prevents iris sphincter muscle from contracting and ciliary muscle for accommodation

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3
Q

Length of action of atropine

A

1 - 2 weeks

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4
Q

Cyclopentolate dose

A

0.5%

1%

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5
Q

Mechanism of cyclopentolate

A

Parasympathetic inhibition (anticholinergic)

Dilates the pupil as prevents iris sphincter muscle from contracting and ciliary muscle accommodation

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6
Q

Contraindications for atropine drops

A

Hypertension

Untreated acute angle closure glaucoma

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7
Q

Length of action of cyclopentolate drops

A

Takes effect in 25 - 75 mins

Recovery over 6 - 24 hours

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8
Q

Contraindications for cyclopentolate drops

A

Untreated acute angle closure glaucoma

Allergy

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9
Q

Tropicamide dose

A

1%

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10
Q

Tropicamide mechanism of action

A

Parasympathetic inhibition (anticholinergic)

Dilates the pupil as prevents iris sphincter muscle from contracting and ciliary muscle accommodation

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11
Q

Phenylephrine drops

A

2.5%

10%

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12
Q

Mechanism of action of phenylephrine

A

Sympathetic agonist

Stimulates iris dilator muscle

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13
Q

Lenght of time for phenylephrine

A

3 - 6 hours

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14
Q

Length of time for tropicamide

A

Takes effect in 15 - 20 mins

Recovery over 4 - 8 hours

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15
Q

Contraindications for tropicamide

A

Untreated acute angle closure glaucoma

Allergy

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16
Q

Contraindications for phenylephrine

A

Avoid in children

17
Q

Side effects of atropine drops

A

Redness of face

Warm to touch

18
Q

Side effects of drops

A

Whitening of sclera - wears off
Sting eyes for a few seconds
Cannot drive until eye sight returns from blurriness

19
Q

Advice on how to take drops

A

Wash hands

20
Q

Use of fluorescein drops

A

Highlight defects in the cornea

Assess tear drainage

21
Q

Mechanism of action of fluorescein

A

Temporary stain

22
Q

Fluorescein length of time

A

6 - 12 hours

23
Q

Side effects of fluorescien

A

Stains clothes and skin

May discolour contact lenses

Year 4 Ophthalmology (27 decks)

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