How Often You Have Itchy Eyes

What Causes Itchy Eyes?

Itchy eyes can have various causes, just like most other symptoms.  Finding the true cause means ruling out or confirming each possibility – in other words, diagnosis.

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Diagnosis is usually a complex process due to the sheer number of possible causes and related symptoms.  In order to diagnose itchy eyes, we could:

  • Research the topic
  • Find a doctor with the time
  • Use a diagnostic computer system.
The process is the same, whichever method is used.

Step 1: List all Possible Causes

We begin by identifying the disease conditions which have "itchy eyes" as a symptom.  Here are four possibilities:
  • Indoor Allergies
  • Hay Fever
  • Dry Eye
  • Psoriasis

Step 2: Build a Symptom Checklist

We then identify all possible symptoms and risk factors of each possible cause, and check the ones that apply:
history of deformed toenails
nasal congestion
above average sneezing frequency
very dry eyes
black/brown fingernails
pitted nails
bloodshot eyes
frequent sneezing / attacks
severe diesel exhaust exposure
severe eyelid twitch
discomfort caused by mold/mustiness
irritated eyes
... and more than 10 others

Step 3: Rule Out or Confirm each Possible Cause

A differential diagnosis of your symptoms and risk factors finds the likely cause of itchy eyes:
Cause Probability Status
Dry Eye 92% Confirm
Psoriasis 19% Unlikely
Indoor Allergies 1% Ruled out
Hay Fever 1% Ruled out
* This is a simple example to illustrate the process

Arriving at a Correct Diagnosis

The Analyst™ is our online diagnosis tool that learns all about you through a straightforward process of multi-level questioning, providing diagnosis at the end.

In the Eyes/Ocular Symptoms section of the questionnaire, The Analyst™ will ask the following question about how often you have itchy eyes:
Approximately how often do your eyes itch?
Possible responses:
→ Never / rarely / don't know
→ A few times a month
→ A few times a week
→ At least once a day
Based on your response to this question, which may indicate not having itchy eyes, occasional itchy eyes, itchy eyes or frequent itchy eyes, The Analyst™ will consider possibilities such as:
Dry Eye

Dry eyes may become itchy, particularly later in the day.


Eye burning, itching & discharge are possible indicators of psoriasis.

Concerned or curious about your health?  Try The Analyst™
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