Allergic conjunctivitis: Difference between revisions
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==Background== | |||
*Conjunctivitis due to exposure to an allergen | |||
*Chronic allergic conjunctivitis is also called vernal conjunctivitis | |||
==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-3-149f2.png|thumb|Chronic allergic conjunctivitis.]] | |||
[[File:PMC3047907 jaa-3-149f8.png|thumb|Contact allergic blepharoconjunctivitis (from eyedrops).]] | |||
*Itching | |||
*Watery discharge | |||
*Injected and [[red eye|edematous conjunctiva]] | |||
*Papillae on inferior conjunctival fornix | |||
*Red, swollen eyelids | |||
==Differential Diagnosis== | ==Differential Diagnosis== | ||
{{Conjunctivitis DDX}} | {{Conjunctivitis DDX}} | ||
== | ==Evaluation== | ||
{{Clinical diagnosis of conjunctivitis}} | |||
==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 [[Steroids|steroid]] therapy | |||
==Disposition== | ==Disposition== | ||
* | *Discharge with ophthalmology follow-up | ||
==See Also== | ==See Also== | ||
*[[Conjunctivitis]] | *[[Conjunctivitis]] | ||
*[[Eye | *[[Eye Algorithms (Main)]] | ||
== | ==References== | ||
<references/> | |||
[[Category: | [[Category:Ophthalmology]] | ||
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