Common ocular infections in Mongoliagyals.mn/files/page/8.pdf · Common ocular infection sites ......
Transcript of Common ocular infections in Mongoliagyals.mn/files/page/8.pdf · Common ocular infection sites ......
Ocular Infections in My PracticeDovchinjamts Dagvadorj, M.D.
Financial disclosure
• No financial interest
• Lid
• Conjunctiva
• Orbital adnexa
Common ocular infection sites
• Cornea
• Vitreous
• Retina/Choroid
• Optic nerve
Defense mechanism
•Blood ocular barrierCorneal epithelium
Vessel endothelium
Retinal pigment epithelium
• Immune mechanism Innate immunity
ACAID /anterior chamber associated immune deficiency/
Infectious organisms
•Bactery
•Fungus
•Virus
•Parasites
Bacterial infection
• Common sight-threatening condition
• Keratitis
• Endophthalmitis
• Uveitis
• Optic neuritis
• Contact lens wear
• Trauma
• Surgery
• Contaminated ocular medication
• Impaired defense mechanisms
• Altered structure of the corneal surface
Common bacterial isolates
Case presentation
Case 1
• 26 years old healthy man
• Painful visual loss in the right eye ~ 4 days
• Small piece of ceramic got into his right eye during cutting the ceramic board.
• Went to local eye clinic and received local Dexamethasone injection for 2 times.
1st day
Right Left
A/C: mild cellular reaction
Deep stromal
infiltration
Impression: Infectious Keratitis
Management:
1. Stop steroid
2. Local Cefazolin injection
3. Moxifloxacin q 2 hour
4. Levofloxacin eye ointment
2nd day
Right
A/C: severe cellular reaction
Deep stromal
infiltration
worsened
Management:
1. Corneal scrape
2. Swab for culture
3. Moxifloxacin q 1 hour
Hypopion
Corneal scrape
1. Get rid of infection
2. Increase penetrance of medication
3. Identify organism by gram stain,
culture
Lab result
Management:
1. Local Vancomycin
injection
2. Fortified vancomycin
eye drop q 1 hour
3. Tetracycline eye
ointment
After selected ATB therapy
After
moderate cellular reaction
Deep stromal
infiltration
improved
No hypopion
A/C: severe cellular reaction
Deep stromal
infiltration
Hypopion
Before
Case 2
• 71 years old women with Hypertension
• Painful visual loss in the right eye 1 day
• Cystoid Macular Edema from Retinal Vein Occlusion
• Intravitreal anti-VEGF injection – Bevacizumab
1st day Photo will be attached
Left
A/C: severe cellular reaction
Hypopion
Impression & Management
• Exogenous Endophthalmitis Left Eye
• Set Vitreous tapping + IVT ceftazidime & vancomycin
• Vitreous for culture
4th day
Vitreous tapping
1. Inoculate the organism
Intravitreal ATB
1. Cover gram + / –
2. Appropriate concentration
3. No ocular toxicity
4. 48 – 72 hours
A/C: moderate cellular reaction
No hypopion
Lab result• IVT ceftazidime
1st vs 4th day
After ATB
4th day 9th day 21th day
Case 3
• 20 years old healthy man
• Painless visual loss in the left eye ~ 7 days
• No trauma, surgery, contact lens wear
• Family history - negative
Eye finding Photo will be attached
Impression :
1. Neuroretinitis
2. Secondary Branch Retinal Vein Occlusion
Differential diagnosis
1. Presumed ocular tuberculosis
2. Ocular syphilis
3. Diffuse Unilater Subacute Neuroretinitis
(Nematode)
4. Antiphospholipid Syndrome
Laboratory investigation
• CBC
• ANA, CRP
• VDRL, RPR
• Mantoux test
• Chest X-Ray
RPR 1:2
VDRL reactive
Unsafe sexual intercourse 1 years ago
Tertiary Syphilis
Treatment
• IV Penicillin G 18 – 24 MU 10 to 14 days
• IM Procaine Penicillin G 2.4 MU q 3 weeks
Before & after treatment
1st visit 7 days 14 days
Thank you for your attention!