Viral conjunctivitis: Difference between revisions

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==Background==
==Background==
*Most common cause of infectious conjunctivitis
*Most common cause of infectious conjunctivitis
*Often preceded by URI (usually adenovirus)
*Often preceded by [[URI]] (usually [[adenovirus]])


==Clinical Features==
==Clinical Features==
*Complaint of "red eye" with mild-moderate, watery discharge
*Complaint of "[[red eye]]" with mild-moderate, watery discharge
*Usually painless unless there is some degree of keratitis
*Usually painless unless there is some degree of keratitis
*Often one eye will be involved initially with other eye involved within days
*Often one eye will be involved initially with other eye involved within days
*Unilateral or bilateral conjunctival injection with perilimbal sparing
*Unilateral or bilateral conjunctival injection with perilimbal sparing
*Chemosis and subconj hemorrhages may be present
*Chemosis and [[subconjunctival hemorrhage]]s may be present
*Preauricular lymphadenitis (adenovirus)
*Preauricular [[lymphadenitis]] (adenovirus)


==Diagnosis==
==Evaluation==
[[File:Conjunctivitis.jpg|thumb|Conjuctivits with limbus sparing]]
[[File:Conjunctivitis.jpg|thumb|Conjunctivitis with limbus sparing]]
*Slit Lamp
*[[Slit lamp]]
**Follicles on inferior palpebral conjunctival
**Follicles on inferior palpebral conjunctival
**Mild, punctate fluorescein staining of cornea (occasional)
**Mild, punctate fluorescein staining of cornea (occasional)
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{{Conjunctivitis DDX}}
{{Conjunctivitis DDX}}


==Treatment==
==Management==
#Artificial tears 5-6x per day
#Artificial tears 5-6x per day
#Cold compresses
#Cold compresses
#Consider topical abx if unable to differentiate from bacterial conjunctivitis
#Consider topical antibiotic if unable to differentiate from bacterial conjunctivitis
#Frequent hand-washing (highly contagious)
#Frequent hand-washing (highly contagious)



Revision as of 22:06, 6 October 2019

Typical Viral Conjunctivitis

Background

  • Most common cause of infectious conjunctivitis
  • Often preceded by URI (usually adenovirus)

Clinical Features

  • Complaint of "red eye" with mild-moderate, watery discharge
  • Usually painless unless there is some degree of keratitis
  • Often one eye will be involved initially with other eye involved within days
  • Unilateral or bilateral conjunctival injection with perilimbal sparing
  • Chemosis and subconjunctival hemorrhages may be present
  • Preauricular lymphadenitis (adenovirus)

Evaluation

Conjunctivitis with limbus sparing
  • Slit lamp
    • Follicles on inferior palpebral conjunctival
    • Mild, punctate fluorescein staining of cornea (occasional)
      • Must differentiate from herpetic dendrite

Clinical diagnosis of conjunctivitis

Conjunctivitis
Bacterial Viral Allergic
Bilateral 50% 25% Mostly
Discharge Mucopurulent Clear, Watery Cobblestoning, none
Redness Yes Yes Yes
Pruritis Rarely Rarely Yes
Additional Treatment: Antibiotics Treatment: Hygiene Seasonal

Differential Diagnosis

Conjunctivitis Types

Management

  1. Artificial tears 5-6x per day
  2. Cold compresses
  3. Consider topical antibiotic if unable to differentiate from bacterial conjunctivitis
  4. Frequent hand-washing (highly contagious)

Disposition

  • Follow-up with ophtho if worsening or no improvement in 7 days

See Also

References