Bacterial conjunctivitis Ophthalmology

1,246 views 40 slides Jun 12, 2021
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About This Presentation

Acute and Hyperacute bacterial conjunctivitis
Ophthalmology


Slide Content

BACTERIAL
CONJUNCTIVITIS
Dhanushree G
6th term
SSIMS Davangere

CONJUNCTIVA ??
❏Translucent mucous membrane
❏Lines posterior surface of eyelids and anterior surface of
eyeball

Microscopy of conjunctiva

LYMPHATICS
NERVE SUPPLY

CONJUNCTIVITIS
➢Inflammation of conjunctiva

Conjunctival
hyperaemia
Discharge
Watery
Mucoid
Mucopurulent
Purulent

TYPES OF CONJUNCTIVITIS
CONJUNCTIVITIS
TOXICCICATRACIAL
ALLERGIC
INFECTIVE
BACTERIAL
VIRAL
OPHTHALMIA
NEONATORUM
GRANULOMATOUS
SIMPLE
VERNAL (VKC)
ATOPIC (ATC)
GIANT PAPILLARY
PHLYCTENULAR
DROP CONJUNCTIVITIS
OMMP
SJS
TeN

BACTERIAL CONJUNCTIVITIS
●Most common type in developing countries.
●Sporadic/epidemic

SPORADIC EPIDEMIC
Normal
commensals
Monsoon

ETIOLOGY
❖Predisposing factors
❖Causative organisms
❖Mode of infection

PRE-DISPOSING FACTORS
➔Flies
➔Poor hygienic conditions
➔Poor sanitation
➔Hot dry climate
➔Dirty habits

CAUSATIVE ORGANISMS
●Staphylococcus (aureus,epidermidis)
●Streptococcus (pneumoniae,pyogenes)
●Haemophilus influenzae
●Moraxella lacunata
●Pseudomonas pyocyanea
●Neisseria (gonorrhoeae,meningitidis)
●Corynebacterium diphtheriae

MODE OF INFECTION

EXOGENOUS LOCAL ENDOGENOUS
●Direct spread
●Vector
●Material
transfer
●From
neighbouring
structures
●Rarely
through Blood

PATHOLOPHYSIOLOGY

PATHOLOGICAL CHANGES
❖Vascular response
❖Cellular response
❖Conjunctival tissue response
❖Conjunctival discharge

TYPES OF BACTERIAL CONJUNCTIVITIS
1.Acute bacterial conjunctivitis
2.Hyperacute bacterial conjunctivitis
3.Chronic bacterial conjunctivitis
4.Angular bacterial conjunctivitis

1.ACUTE BACTERIAL CONJUNCTIVITIS
★Conjunctival hyperaemia
★Mucopurulent discharge
★a/k/a Acute mucopurulent
conjunctivitis

COMMON CAUSATIVE BACTERIA
●Staph. Aureus
●Koch-Weeks bacillus
●Pneumococcus
●Streptococcus

CLINICAL FEATURES
SYMPTOMS :
●Discomfort
●Grittiness

Blurry vision
Redness

Mild photophobia
Mucopurulent discharge

Sticky eyelids with
discharge
Coloured halos

SIGNS
Mucopus flakes Fiery Red eye
Chemosis

Eyelid edema
Petechial hemorrhage
Papillae

CLINICAL COURSE
Acute Bacterial Conjunctivitis
3-4 days ---
(reach peak)
Cured
(10-15
days)
Chronic
catarrhal
conjunctivitis
Untreated

COMPLICATIONS
★Superficial punctate epitheliopathy
★Marginal corneal ulceration
★Superficial keratitis
★Blepharitis
★Dacrocystitis
Corneal ulcer
Blepharitis Dacrocystitis

DIFFERENTIAL DIAGNOSIS
RED EYE CONJUNCTIVITIS
●Acute congestive
glaucoma
●Acute anterior uveitis
●SCH
●Viral
●Allergic
●Chlamydial

TREATMENT
1)TOPICAL ANTIBIOTICS
➔Chloramphenicol (1%)
➔Gentamycin (0.3%)
➔Framycetin (0.3%)
◆eye drops 3-4 hourly/day
◆ointment at night
➔If not effective : ciprofloxacin, ofloxacin,moxifloxacin

2) Conjunctival sac irrigation
❏With sterile warm saline once or
twice a day
❏Frequent eye wash is
contraindicated
It will wash off the lysozymes and
protective proteins.

3) Dark goggles
To prevent photophobia


4) Anti-inflammatory and analgesic drugs :
--Ibuprofen / paracetamol given orally for 2-3 days

➢No Bandage :
○Exposure to air
○lowers the temp and decreases
the growth of bacteria
○Discharge escape

➢No steroids :
○Aggrevates the infection
○Causes corneal ulcers

PREVENTIVE MEASURES

Hand washing
Avoid sharing
towels/kerchief

2. HYPERACUTE BACTERIAL CONJUNCTIVITIS
❖Also called Acute purulent conjunctivitis or Acute
Blenorrhoea.
❖Occurs in two forms :
➢Adult purulent conjunctivitis
➢Ophthalmia neonatorum in newborn

ADULT PURULENT CONJUNCTIVITIS
ETIOLOGY :
●Adults - predominantly males
●Gonococcal infection ( may be associated with
urethritis or arthritis)

ONSET : Hyperacute (12-24 hrs)

SYMPTOMS
➔Pain
➔Purulent discharge
➔Eyelid swelling
➔Mild photophobia
➔Sticky eyelids
➔Slight blurring of vision

CLINICAL PICTURE : 3 STAGES
1.Stage of infiltration
2.Stage of Blenorrhoea
3.Stage of slow healing

COMPLICATIONS
★Corneal ulceration ; edema ; necrosis ; perforation
★Iridocyclitis
★Systemic complications : gonorrhoea arthritis ,
endocarditis, septicaemia. (rare)

TREATMENT
1.Systemic therapy :
a.Third gen. Cephalosporins - 5 days
b.Quinolones - Norfloxacin 1.2g orally - 5 days
c.Spectinomycin 2.0g IM - 3 days
2.Topical antibiotics :
a.Eye drops - ofloxacin,ciprofloxacin
b.Ointment - erythromycin

3. Irrigation of eyes : with sterile saline frequently
4. Topical Atropine : 1% eye drops - once or twice if cornea
affected.

NOTE --
-Sexual partner should also be treated with systemic antibiotics.
-Both pt. and partner are evaluated for other STDs

THANK
YOU :)
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