Allergic conjunctivitis

red eyesallergic rhinoconjunctivitisconjunctivitis, allergicconjunctivalconjunctivitisrhinoconjunctivitis
Allergic conjunctivitis is inflammation of the conjunctiva (the membrane covering the white part of the eye) due to allergy.wikipedia
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Allergic rhinitis

hay feverhay-feverhayfever
Although allergens differ among patients, the most common cause is hay fever.
Many people with allergic rhinitis also have asthma, allergic conjunctivitis, or atopic dermatitis.

Conjunctivitis

pink eyepinkeyeblepharoconjunctivitis
Allergic conjunctivitis is inflammation of the conjunctiva (the membrane covering the white part of the eye) due to allergy.
Allergic conjunctivitis is inflammation of the conjunctiva due to allergy.

Allergy

allergiesallergicallergic reaction
Allergic conjunctivitis is inflammation of the conjunctiva (the membrane covering the white part of the eye) due to allergy.
Symptoms may include red eyes, an itchy rash, sneezing, a runny nose, shortness of breath, or swelling.

Allergen

allergensallergenicantiallergic
Although allergens differ among patients, the most common cause is hay fever. When an allergen irritates the conjunctiva, common symptoms that occur in the eye include: ocular itching, eyelid swelling, tearing, photophobia, watery discharge, and foreign body sensation (with pain).
Symptoms include rhinitis, which causes sneezing and a runny nose, as well as allergic conjunctivitis, which includes watering and itchy eyes.

House dust mite

dust mitedust mitesDermatophagoides
Dust mites
House dust mites are associated with allergic rhinitis and asthma, as well as allergic conjunctivitis.

Mast cell stabilizer

mast cell inhibitormast cell stabilizers
Treatment consists of antihistamine, mast cell stabilizers, dual mechanism anti-allergen agents, or topical antihistamines.
As inhalers they are used to treat asthma, as nasal sprays to treat hay fever (allergic rhinitis) and as eye drops for allergic conjunctivitis.

Mast cell

mast cellsanaphylactic degranulationmastocytes
The symptoms are due to release of histamine and other active substances by mast cells, which stimulate dilation of blood vessels, irritate nerve endings, and increase secretion of tears.
Many forms of cutaneous and mucosal allergy are mediated in large part by mast cells; they play a central role in asthma, eczema, itch (from various causes), and allergic rhinitis and allergic conjunctivitis.

Allergen immunotherapy

sublingual immunotherapyallergy immunotherapyoral immunotherapy
Allergen immunotherapy (AIT) treatment involves administering doses of allergens to accustom the body to substances that are generally harmless (pollen, house dust mites), thereby inducing specific long-term tolerance.
It is generally safe and effective for allergic rhinitis, allergic conjunctivitis, allergic forms of asthma, and stinging insects.

Nedocromil

Nedocromil sodium
Doctors commonly prescribe lodoxamide and nedocromil as mast cell stabilizers, which come as eye drops.
Nedocromil sodium has been shown to be effective in alleviating symptoms of allergic conjunctivitis.

Atopy

atopicatopic disordersatopic diseases
Allergic conjunctivitis is a frequent condition as it is estimated to affect 20 percent of the population on an annual basis and approximately one-half of these people have a personal or family history of atopy.
People with atopy also have a tendency to have food allergies, allergic conjunctivitis, and other symptoms characterized by their hyperallergic state.

Cromoglicic acid

sodium cromoglycatecromolyn sodiumcromolyn
Another common mast cell stabilizer that is used for treating allergic conjunctivitis is sodium cromoglicate.
as eye drops (Opticrom and Optrex Allergy (UK), Crolom, Cromolyn (Canada)) for allergic conjunctivitis

Vernal keratoconjunctivitis

vernal conjunctivitis
Both vernal keratoconjunctivitis and atopic keratoconjunctivitis are chronic allergic diseases wherein eosinophils, conjunctival fibroblasts, epithelial cells, mast cells, and TH2 lymphocytes aggravate the biochemistry and histology of the conjunctiva.
Allergic conjunctivitis

Allergic inflammation

inflammationallergicimmune
Allergic conjunctivitis is inflammation of the conjunctiva (the membrane covering the white part of the eye) due to allergy.

Conjunctiva

conjunctivalconjuctivabulbar conjunctiva
Allergic conjunctivitis is inflammation of the conjunctiva (the membrane covering the white part of the eye) due to allergy. Both vernal keratoconjunctivitis and atopic keratoconjunctivitis are chronic allergic diseases wherein eosinophils, conjunctival fibroblasts, epithelial cells, mast cells, and TH2 lymphocytes aggravate the biochemistry and histology of the conjunctiva. Symptoms consist of redness (mainly due to vasodilation of the peripheral small blood vessels), edema (swelling) of the conjunctiva, itching, and increased lacrimation (production of tears).

Membrane

membranesmembranousBiomembrane
Allergic conjunctivitis is inflammation of the conjunctiva (the membrane covering the white part of the eye) due to allergy.

Blood vessel

vascularblood vesselsintravascular
Symptoms consist of redness (mainly due to vasodilation of the peripheral small blood vessels), edema (swelling) of the conjunctiva, itching, and increased lacrimation (production of tears).

Edema

dropsyoedemaswelling
Symptoms consist of redness (mainly due to vasodilation of the peripheral small blood vessels), edema (swelling) of the conjunctiva, itching, and increased lacrimation (production of tears).

Itch

itchingpruritusitchiness
Symptoms consist of redness (mainly due to vasodilation of the peripheral small blood vessels), edema (swelling) of the conjunctiva, itching, and increased lacrimation (production of tears). When an allergen irritates the conjunctiva, common symptoms that occur in the eye include: ocular itching, eyelid swelling, tearing, photophobia, watery discharge, and foreign body sensation (with pain).

Tears

lacrimationteartear film
Symptoms consist of redness (mainly due to vasodilation of the peripheral small blood vessels), edema (swelling) of the conjunctiva, itching, and increased lacrimation (production of tears).

Rhinitis

coryzaseasonal allergic rhinitisrhinitis, allergic, perennial
If this is combined with rhinitis, the condition is termed allergic rhinoconjunctivitis.

Histamine

histaminesantihistaminicHis
The symptoms are due to release of histamine and other active substances by mast cells, which stimulate dilation of blood vessels, irritate nerve endings, and increase secretion of tears.

Free nerve ending

nerve endingfree nerve endingsfree' non-specialized endings
The symptoms are due to release of histamine and other active substances by mast cells, which stimulate dilation of blood vessels, irritate nerve endings, and increase secretion of tears.

Eye drop

eye dropseyedropsophthalmic
Treatment of allergic conjunctivitis is by avoiding the allergen (e.g., avoiding grass in bloom during "hay fever season") and treatment with antihistamines, either topical (in the form of eye drops), or systemic (in the form of tablets).

Nonsteroidal anti-inflammatory drug

non-steroidal anti-inflammatory drugNSAIDsnonsteroidal anti-inflammatory drugs
Antihistamines, medications that stabilize mast cells, and nonsteroidal anti-inflammatory drugs (NSAIDs) are generally safe and usually effective.

Eye

eyesoculareyeball
When an allergen irritates the conjunctiva, common symptoms that occur in the eye include: ocular itching, eyelid swelling, tearing, photophobia, watery discharge, and foreign body sensation (with pain).