Allergic conjunctivitis: Difference between revisions
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==Clinical Features== | ==Clinical Features== | ||
[[File:PMC4396420 opth-9-575Fig1.png|thumb|Bilateral allergic contact dermatitis caused by eyedrops (left) and after resolution (right).]] | |||
[[File:PMC3640929 1824-7288-39-18-1.png|thumb|Seasonal allergic conjunctivitis. Inverted eyelid showing mild conjunctival injection and moderate chemosis.]] | |||
[[File:PMC3047907 jaa-3-149f1.png|thumb|Acute allergic conjunctivitis.]] | [[File:PMC3047907 jaa-3-149f1.png|thumb|Acute allergic conjunctivitis.]] | ||
[[File:PMC3047907 jaa-3-149f2.png|thumb|Chronic allergic conjunctivitis.]] | [[File:PMC3047907 jaa-3-149f2.png|thumb|Chronic allergic conjunctivitis.]] | ||
[[File:PMC3047907 jaa-3-149f8.png|thumb|Contact allergic blepharoconjunctivitis (from eyedrops).]] | |||
*Itching | *Itching | ||
*Watery discharge | *Watery discharge | ||
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==Management== | ==Management== | ||
*'''Mild''': avoid triggers, cool compresses for 15 minutes QID | *'''Mild''': avoid triggers, cool compresses for 15 minutes QID | ||
*'''Moderate''': Histamine-blocking drops (e.g. olopatadine, pemirolast, or ketotifen) | *'''Moderate''': Histamine-blocking drops (e.g. naphazoline/pheniramine 0.025%/0.3%, olopatadine, pemirolast, or ketotifen) | ||
*'''Severe''': refer to ophthalmology for possible [[Steroids|steroid]] therapy | *'''Severe''': refer to ophthalmology for possible [[Steroids|steroid]] therapy | ||
Latest revision as of 16:40, 12 March 2021
Background
- Conjunctivitis due to exposure to an allergen
- Chronic allergic conjunctivitis is also called vernal conjunctivitis
Clinical Features
- Itching
- Watery discharge
- Injected and edematous conjunctiva
- Papillae on inferior conjunctival fornix
- Red, swollen eyelids
Differential Diagnosis
Conjunctivitis Types
Evaluation
Clinical diagnosis of 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 |
Management
- Mild: avoid triggers, cool compresses for 15 minutes QID
- Moderate: Histamine-blocking drops (e.g. naphazoline/pheniramine 0.025%/0.3%, olopatadine, pemirolast, or ketotifen)
- Severe: refer to ophthalmology for possible steroid therapy
Disposition
- Discharge with ophthalmology follow-up