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Y3 Ophthalmology Conditions > Eyelid disorders > Flashcards

Eyelid disorders Flashcards

1
Q

Blepharitis

A

Inflammation of eyelid margins

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2
Q

Glands responsible for secreting oil that dysfunction in blepharitis

A

Meibomian glands

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3
Q

Mx blepharitis

A
  • hot compresses

- gentle cleaning

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4
Q

Least viscous lubricating drops that lasts 10 mins

A

Hypromellose

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5
Q

Middle viscous lubricating drips that are worth starting with

A

Polyvinyl alcohol

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6
Q

Most viscous drops that last 30-60 mins

A

Carbomer

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7
Q

Stye

A

Hordeolum externum: infection of glands of Zeus/glands of Moll

Hordeolum internum: infection of Meibomian glands

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8
Q

Location & symptoms of inflammation of Zein/Moll/Meibomian

A

Zeis: sebaceous glands at base of eyelashes
Moll: sweat glands in same location
Tender red limb along eyelid, contain pus

Meibomian: deeper, more painful, point inward towards the ball

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9
Q

Mx styes

A

Hot compresses + analgesia

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10
Q

What is chalazion (Meibomian cyst)

A

Meibomian gland blocked & swelled

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11
Q

Tx chalazion

A

Hot compresses + analgesia (rarely surgical)

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12
Q

Entropion (inverted eyelids) can result in

A
  • cornel damage

- ulceration

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13
Q

Initial & definitive mx entropion

A
  • tape eyelid down (lubricate)

- surgical

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14
Q

Explain the exposure keratopathy in ectropion

A

Exposed eyeball with inadequate lubrication & protection

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15
Q

Why can trichiasis lead to pain, corneal damage & ulceration

A

Inward growth of eyelashes

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16
Q

Trichiasis first line & definitive options

A
  • epilation

- electrolysis, cryotherapy, laser tx

17
Q

Definition of preorbital cellulitis

A

Eyelid skin infection in front of orbital septum

18
Q

Presentations preorbital cellulitis

A

Swelling, redness & hot skin

19
Q

Tx pre/orbital cellulitis

A

Pre: IV/oral prednisolone
Orbital: IV prednisolone

20
Q

Why is orbital cellulitis a medical emergency (lead to sight loss)

A

Can spread behind orbital septum

21
Q

Key features that differentiate periorbital from orbital cellulitis that are found in orbital

A
  • pain on eye movement
  • reduced eye movements
  • change in vision
  • abnormal pupil reaction
  • proptosis
  • CT

Y3 Ophthalmology Conditions (18 decks)

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