High risk Ophthalmology no personal financial relationships for - - PDF document

high risk ophthalmology
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High risk Ophthalmology no personal financial relationships for - - PDF document

2/16/2014 conflicts of interest High risk Ophthalmology no personal financial relationships for David Duong, MD MS products or services in this talk University of California, San Francisco Department of Emergency medicine objectives


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High risk Ophthalmology

David Duong, MD MS University of California, San Francisco Department of Emergency medicine

conflicts of interest

  • no personal financial relationships for

products or services in this talk

  • bjectives
  • Pointers and pitfalls in:
  • Eye trauma
  • The red eye
  • Visual loss

Diagnosis

CORNEAL FOREIGN BODY

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foreign body removal

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Pearls for Rust Rings

  • Rust Rings do not have to be removed

immediately

  • Removal is often easier 1-2 days after

the injury and with a corneal drill

  • Homatropine can help with ciliary

spasm

  • Arrange follow-up in 1-2 days after

removal

Can J Rural Med 2013

everting the lid

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subtarsal foreign body

corneal Foreign Body pitfalls

  • Not everting the lid
  • Not considering an intraocular FB
  • Not considering corneal laceration

high risk lacerations?

ALL OF THEM

anatomy

  • phtho or plastics need to be involved for

lacerations involving the: tarsal plate lid margin nasolacrimal system

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canalicular laceration

eyelid laceration pitfalls

  • Not assuming there are other ocular

injuries

  • Not obtaining visual acuity

so get Va, assess EOM, RAPD, etc. Va helps to risk stratify for eye emergencies

EM Clin NA. 2008

globe rupture

  • decreased Va
  • RAPD
  • eccentric pupil
  • bullous subconjunctival hemorrhage
  • extrusion of vitreous
  • hyphema
  • Seidel test

Globe rupture

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seidel test

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key actions globe rupture

  • Consult ophthalmology and order CT
  • Protect the eye (eye shield, avoid eye

manipulation)

  • Avoid ocular extrusion (antiemetics,

pain meds, sedation)

  • Antibiotic prophylaxis
  • Tetanus prophylaxis

Diagnosis

HYPHEMA

HYPHEMA TREATMENT

<33% (Grade 1) microhyphema good prognosis eye shield HOB >30 deg cycloplegia

  • phtho referral

no NSAIDS

90% visual acuity prognosis 20/50 or better. HOB >30 deg to prevent synechiae cycloplegia only if no incr IOP referral to monitor for incr IOP and rebleeding within 5 days.

33-50% (Grade 2)

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HYPHEMA TREATMENT

>50% (Grade 3 & 4) ↑ IOP (>24) sickle cell

  • phtho consult

eye shield HOB >30 deg no NSAIDS

topical B-blocker if increased IOP. c/s may also recommend steroid drops

HYPHEMA PITFALLS

  • Not obtaining an IOP or asking about

sickle cell disease or trait

  • Discharging with NSAIDs
  • Neglecting close ophthalmology follow-

up

  • Not considering globe rupture or IOFB

The Red Eye

case of red eye

  • 52-yo F with 1 day of severe right eye

pain, and decreased vision. On exam, you see corneal cloudiness and diffuse conjunctival injection with ciliary flush.

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medical treatment of acute angle glaucoma

  • How do you use the drops?
  • How many times can you repeat the

drops?

  • What about acetazolamide and

mannitol?

medical treatment of acute angle glaucoma

  • Give separate eye drops 1 minute apart

(timolol, apraclonidine, prednisolone, pilocarpine are acceptable)

  • Give acetazolamide PO early
  • Repeat drops once in 15 minutes

medical treatment of acute angle glaucoma

  • Goal IOP is 35 mmHg or >25%

presenting IOP

  • Consider mannitol IV if IOP is still high
  • Call ophthalmology again

Choong et al. Eye. 1999

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vision loss floaters

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Hollands et al. JAMA 2009

approach to floaters and flashes

  • Bottom line is to determine when to

refer a vision threatening condition to prevent further vision loss or restore vision

Hollands et al. JAMA 2009

PVD can lead to retinal tears 14% prevalence 33-46% of retinal tears lead to retinal detachment

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JAMA meta-analysis

  • floaters vs flashes vs both is not

diagnostically helpful for retinal tear

  • older age (>60) is not associated with

increased risk of retinal tear; younger age is not less likely to have retinal tear

discuss evidence behind recommendations from the JAMA paper

subjective visual acuity

baseline 14% prevalence of retinal tear in those with PVD worse vision no change 45% probability

  • f retinal tear

9% probability of retinal tear

Hollands et al. JAMA 2009

vitreous hemorrhage or pigment

baseline 14% prevalence of retinal tear in those with PVD vitreous hemorrhage LR = 10 vitreous pigment LR = 44 62% probability

  • f retinal tear

88% probability

  • f retinal tear

besides allergy and glaucoma - there is no absolute contraindication for pupillary dilation for a good exam. 1 gtt tropicamde + 1 gtt phenylephrine and wait 20 minutes

Key actions

  • Assess subjective visual acuity
  • Assess visual acuity and peripheral

vision

  • Fundiscopic exam +/- slit lamp

need pictures or videos or vitreous hemorrhage and pigment - assess via slit lamp or direct

  • phthalmoscopy (Shafer’s or Shaffer’s sign)

root atlas has a video of retinal detachment

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pitfalls in the case of floaters and flashes

  • Not referring to ophthalmology with only

subjective visual acuity loss

  • Not giving return precautions with a

PVD diagnosis (more floaters or vision reduction)

Case of vision loss

  • 72-yo F with sudden painless,

decreased left eye vision 2 hours. Va OS = cannot read the eye chart or count fingers, but can see hand motion.

Diagnosis

CENTRAL RETINAL ARTERY OCCLUSION

key actions CRAO

  • Rule-out temporal arteritis (including

ESR & CRP)

  • Consider ocular massage (within 24

hrs)

  • Ophtho consult (to consider AC

paracentesis or thrombolytics)

Fraser et al. Cochrane review. 2009

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pitfalls CRAO

  • Failing to consider embolic source of

CRAO

  • ECG for AFib
  • carotid imaging
  • cardiac evaluation

Case of vision loss

  • 38-yo F with decreased left eye vision

for 2d with mild eye pain. She has decreased Va, a + RAPD on the left, and swollen optic disc. nl slit lamp exam.

relative afferent pupillary defect

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key actions

  • ptic neuritis
  • Neurology consult for MS and NMO

work-up

  • Consider MRI with gadolinium
  • Consider IV steroids

ONTT - 457 patients with optic neuritis IV methylprednisolone was associated with faster recovery in visual fxn and a lower 2-year risk of development of multiple sclerosis. but did not affect long term outcome Oral prednisone was associated with an increased incidence of recurrent

  • ptic neuritis and did not improve visual
  • utcomes compared to placebo

Beck et al. NEJM. 1993

  • Cochrane. 2012
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summary

  • Key Actions and Pitfalls in:
  • Eye trauma
  • The red eye
  • Vision loss

www.rootatlas.com podcasts@ucsf

particular thanks to those who gave consent to be photographed for educational purposes

thank you for your attention

david.duong@emergency.ucsf.edu

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pediatrics

  • CORNEAL ABRASIONS
  • antibiotic ointments lubricate
  • consider 1 drop of cycloplegia
  • consider codeine elixir

Video of a baby crying before this slide?

CORNEAL ABRASION PITFALL

  • Return precautions
  • RED FLAG: persistent pain or

unwillingness or open the eye after 1 day of treatment

pediatric Eye trauma PITFALL

  • Consider sedation to fully evaluate the

eye

  • Ketamine: total dose <3mg/kg does not

raise IOP

  • Nagdeve. J Ped Ophth Strab. 2006

pediatric vision testing

  • Pediatric Eye Chart
  • Fix and Follow (F/F)
  • Blink to Light (BTL)
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fixation target

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Fix and follow

Can start to fix and follow at 2 months

References

  • 1. Magauran. Emerg Med Clin N Am. 2008; 26; 23.
  • 2. Carley. Emerg Med J. 2001; 18: 273.
  • 3. Guess S et al. Ocul Surf. 2007; 5(3): 240.
  • 4. Choong YF et al. Eye. 1999; 13: 613
  • 5. Hollands et al. JAMA. 2009; 302(20): 2243.
  • 6. Germann et al. AJEM. 2007; 25: 834.
  • 7. Fraser et al. Cochrane Database of systematic reviews. 2009.
  • 8. Mohamed et al. Ophthalmology. 2007; 114(3):507.
  • 9. Nagdeve et al. J Ped Ophth Strab. 2006; 43(4):219.
  • 10. Brock G et al. Can J Rural Med. 2013; 18(4)
  • 11. Gharaibeh A et al. Cochrane Database of systematic reviews. 2013.
  • 12. Halstead SM et al. Acad EM. 2012; 19:1145-1150
  • 13. Gal RL et al. Cochrane Database of systematic reviews. 2012.

cells and flare

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