Osler Flashcards

1
Q

Rx for canaliculotis

A

Curratage of the canaliculus

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2
Q

Ptosis ddx

A

Neurogenic
Aponuerotic
Cicatricial
Mechanical

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3
Q

Ptosis repair

A

Levator advancement
Fasanella servat
Mullerectomy

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4
Q

Canaliculitis risks

A

Pilocarpine
Ho punctal plugs
Previous radioactive iodine
Chemo agents

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5
Q

Normal lf how many mm

A

12-15mm

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6
Q

Normal mrd1

A

4 mm

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7
Q

How to correct mild 2 mm ptosis

A

Mullerectomy

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8
Q

How to correct moderate ptosis lf 4-8mm

A

Levator resection

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9
Q

How to correct involutional/aponeurtic ptosis

A

Levator advancement

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10
Q

What to do if lf

A

Sling

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11
Q

Sebhorric keratosis how to treat

A

Cut it off

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12
Q

Whats the important thing to do w thyroid

A

Stop smoking!!!!!

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13
Q

Ss w hyphema what do u have to do?

A

Admit give oxygen and iv fluid

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14
Q

What nerves do u worry about w a cn7 palsy?

A

6 or 8

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15
Q

Tearing case w kid what not to forget

A

Congenital glaucoma

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16
Q

Ptosis ddx

A

Pseudoptosis (dermatochalasis or brow ptosis)
Neurogenic
Involutional

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17
Q

What visual field for ptosis?

A

Taped and untaped superior 64

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18
Q

Bilateral ptosis what do younhave to consider?

A

That its brow ptosis- do brow lift prior to any bleph

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19
Q

Retrobulbar heme ddx

A

Varix
Reyrobulbar heme (canthotony cantholysis)
Lymphangioma
Ccf

20
Q

Ectropion repair options

A

Ointments
Tape lids
Lateral tarsal strip
May need full thickness skin graft if too tight

21
Q

Kid w ptosis eating

A

Jaw winking

22
Q

Squamous cell more or less agressive than bcc?

A

More aggressive

Can met perineurally or hemeatogenouy

23
Q

How do you treat floppy eyelid syndrome?

A

Horizontal lid toghtening procedure
Tarsal wedge for the upper lid
Look for lash ptosis

24
Q

Risk factors for floppy eyelid

A

Obesity

Sleep apnea

25
Q

How to treat symblepharon?

A

Agg lubrication

Symbleph ring

26
Q

Red skin ddx?

A

Rosacea

27
Q

Doxy risks

A

Gi upset
Sun sensitivities
Tooth discoloration

28
Q

Eccymosis in a kid whats ddx?

A

Trauma abuse orbital fx

Neuroblastoma- bilateral racoon eyes in young kid

29
Q

How do you cut out lid melanoma?

A

Wide excision w 5 mm margins bc melanoma stain takes overnight to get path back
Then you repair the defect the nexr day

30
Q

Where does upper eyelid drain

Lower eyelid drain?

A

Upper- pre auricular

Lower sub mandibular

31
Q

Ocp what to look for on biopsy?

A

Immunoflourescent stain of bm

32
Q

Squamous cell wu

A

Need sentinal node biopsy and met wu

Can spread perineural spread

33
Q

What type of bcc is likely to met to orbit?

A

Medial canthus

34
Q

Rx of entropion

A
Cl
Lubricate
Quicket suture
Wedge resection and clsore
Lat tarsal strip
35
Q

Why would postlasik have halos at night?

A

1) Ho high refractive pwr

2) small ablation zone and when pupil dilates at night causes halos

36
Q

Whats the abby value?

A

Related to the preoperty of a lens. Used to classify glass by amount of chromatic abberation it produces. High abby value means less chromatic abberation

37
Q

Someone w induced astigmatism what can u check?

A

Topo- could be forme fruste kcn irreg astig

Fit w hcl or rgp

38
Q

What type of lens can u use if pt co colors or chorm abberation?

A

Doublet lens

39
Q

Myopic surprise sp ceiol ddx

A

Ovd in back of bag
Iol forward
Iol calc off
Pco

40
Q

Favorable lenticular astigmatism what to do?

A

Scl or glasses bc hcl would unmask lenticular astig

41
Q

High plus lenses what type of scotoma might they have?

A

Roving ring scotoma or jack in the box phenomenon

42
Q

What does the snr mean?

A

Signal to noise ratio.

If low then a length could be off

43
Q

Optical principle of titmus testing

A

Polarization each eye in glasses is polarized 90 degrees away from each other forms 2 distinct images on retina this is how 3D movies work

44
Q

If has so in eye what type of iol to choose?

A

Not silicone
Convex-plano iol
A length could be falsely long could put in too weak power- gives hyperopic surprise
Talk to retina if can do combined sor i

45
Q

Whats the best tint for sunrise sunset and whats best tint for midday?

A

Sunrise- brown

Midday- smoke gray

46
Q

Etdrs chart based on what principle?

A

Visual angle- 3 lines diff = doubling of acuity each line 0.1 log change
Letters are sen serifed

47
Q

Whats an occupational bifocal?

A

Ex mechanic put bifocal portion on top