Eye allergies in children: symptoms & treatment

by Dr Claire Cullen, opthamologist
Baby Yum Yum - Eye allergies in children symptoms & treatment
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Eye allergies are surprisingly common in children in South Africa and, unfortunately, this phenomenon appears to be on the increase. Some children will experience eye allergies as infants and young children but outgrow it as adults, while others will continue to battle with it right into adulthood.

Why do children suffer from eye allergies?

If one of the child’s biological parents suffers from some form of allergy, there’s a 40% to 50% chance that the child will have some sort of allergy as well. That probability jumps to 75% to 80% when both biological parents have allergies. An allergy describes the “over excited” way in which the body reacts to something in the environment which it sees as foreign. This foreign substance is called an allergen.

Types of eye allergens

Outdoor allergens include pollens, diesel exhaust and petrol fumes, while indoor culprits encompass pet dander, dust mites, mould, and cigarette smoke. A child can come into contact with an allergen by touching it, breathing it in or eating it and the body sees the allergen as foreign.

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Allergic eye disease symptoms

In a child with allergies, the body mistakenly identifies the foreign object as a serious threat, which in turn triggers a cascade of immune mediated enzymes and chemicals to be released into the body to fight off this intruder. This overzealous reaction can cause a range of symptoms, from having mildly itchy eyes to chronic scarring with resultant loss of vision.

Symptoms may only occur during certain seasons such as spring when flowers start to blossom or may be present throughout the year due to continual exposure to something like house dust mites.

Common symptoms of allergic eye disease

  • Itchy eyes with frequent rubbing
  • Increased tearing (watery eyes)
  • Red or pink eyes.
  • Mild swelling of the eyelids. Areas around the eye or just below the eye are also often involved.
  • Darkened discoloration of the skin under the eye.
  • Rubbing their eyes often.
  • Blinking forcefully and repeatedly.
  • Making rolling eye movements in response to the itchy sensation caused by allergies.

Common symptoms of allergic eye disease

Symptoms that are NOT caused by allergies

It’s important to note is that eye allergies do not cause the following symptoms:

  • A sticky, stringy, mucus discharge.
  • A green or a yellow discharge
  • Lids that are so swollen that they close the eyes.
  • Pain or a fever.

Should any of these symptoms occur, medical attention should be sought immediately!

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Treatment and management of eye allergies in children

Once a diagnosis of allergic eye disease has been made by your eye specialist, there are a variety of management protocols that can be followed. The simplest of these is to avoid the possible triggers. Many allergens that cause eye allergies are difficult to identify, but there are a few general procedures that can be helpful:

  • Keep windows closed during high pollen periods and stay indoors as much as possible when pollen counts are at their peak, usually during the midmorning and early evening, and on windy days.
  • Avoid using window fans that can draw pollens and molds into the house; use air-conditioning in your home and car if possible.
  • In damp areas use a dehumidifier to control mould.
  • Use “mite-proof” bedding covers to limit exposure to dust mites, and wash your bedding frequently, using hot water (above 40C).
  • Wash your hands after petting any animal.
  • In addition to avoiding triggers, your child’s eyes can be made more comfortable by using medication.
  • Some symptoms can be controlled by using over-the-counter medication such as artificial tears, a decongestant drop and oral antihistamines. There are two important factors to be considered when taking these medications. OTC decongestant eye drops should not be used for more than two to three days. Prolonged use can create a “rebound effect” – increased swelling and redness that may last even after discontinuing the drops. OTC Antihistamine tablets may also cause dry eyes and potentially worsen eye allergy symptoms.
  • Prescribed drops include preparations such as anti-histamines, mast cell stabilisers, non-steroidal anti-inflammatory and corticosteroids. Your eye specialist will determine which combination of these treatments are the most appropriate for your child.

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Why correct diagnosis of eye allergies in children is important

Eye allergies can cause great discomfort and in rare cases, even vision loss. But with the correct diagnosis and treatment, the condition can be well controlled. It is always recommended to see an eye specialist for the best possible advice.

This article originated on www.kidseyes.co.za and was written by Dr Claire Cullen. You can read the article here.

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