Eye Focusing Ability

What Causes Poor Eye Focus?

Poor eye focus 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 poor eye focus, 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 "poor eye focus" as a symptom.  Here are two possibilities:
  • Presbyopia
  • Premature Aging

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:
slow reaction time
some loss of muscle tone
joint pain/swelling/stiffness
severe muscle atrophy
reduced sense of smell
reduced skin elasticity
some health decline
increased skin wrinkling
poor balance
loss of interest in activities
specific muscle weakness
... and so on

Step 3: Rule Out or Confirm each Possible Cause

A differential diagnosis of your symptoms and risk factors finds the likely cause of poor eye focus:
Cause Probability Status
Presbyopia 99% Confirm
Premature Aging 71% Possible
* 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 eye focusing ability:
How well can your eyes focus on close objects? Slowly bring a newspaper or book closer to your eyes. Without wearing glasses or contact lenses, approximately how far from your eyes is the page when the regular-size letters start to blur?
Possible responses:
→ I can't do this test / don't know
→ Less than 4 inches (10cm)
→ 4-11 inches (10-28cm)
→ 12-36 inches (30-90cm or 1-3 feet)
→ Over 36 inches (90cm or 3 feet)
Based on your response to this question, which may indicate short focal length, average focal length, increased focal length or long focal length, The Analyst™ will consider possibilities such as:
... and also rule out issues such as:
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