Type Of Recent Vision Loss

What Causes Central Vision Loss?

Central vision loss can have various causes, ranging in severity from 'needs attention' to 'generally fatal'.  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 central vision loss, 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 "central vision loss" as a symptom.  Here are six possibilities:
  • Retinitis Pigmentosa
  • Pituitary Tumor
  • Macular Degeneration
  • Stroke Risk
  • Brain Tumor
  • Glaucoma

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:
macular degeneration
being mildly farsighted
pain in one eye
bulging eyes
glaucoma
African ethnicity
sleeping less than necessary
occasional COX-2 inhibitor use
having excess body fat
vision disturbances
being blind or nearly blind
current atypical headaches
... and more than 30 others

Step 3: Rule Out or Confirm each Possible Cause

A differential diagnosis of your symptoms and risk factors finds the likely cause of central vision loss:
Cause Probability Status
Retinitis Pigmentosa 98% Confirm
Stroke Risk 67% Possible
Brain Tumor 29% Unlikely
Glaucoma 1% Ruled out
Pituitary Tumor 0% Ruled out
Macular Degeneration 0% 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.

If you indicate eye problems, The Analyst™ will ask further questions including this one:
If you have suffered any loss of vision within the past few years, how would you describe it?
Possible responses:
→ Not applicable / long time ago / don't know
→ General vision loss
→ Mainly central (foveal) vision loss
→ Mainly outer (peripheral) vision loss
Based on your response to this question, which may indicate general vision loss, central vision loss or peripheral vision loss, The Analyst™ will consider possibilities such as:
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