Gradual Vision Loss

What Causes Loss Of Vision?

Loss of vision can have various causes, ranging in severity from 'serious' 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 loss of vision, 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 "loss of vision" as a symptom.  Here are four possibilities:
  • Brain Tumor
  • Cataracts
  • Multiple Sclerosis
  • Aspartame/Neotame Side-Effects

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:
having trouble concentrating
rapid decline in speaking ability
frequent involuntary eye movement
Under 1 year above 180 blood sugar
inability to tell hot from cold
low lymphocyte count
history of brain cancer
frequent confusion/disorientation
vision disturbances
heart racing/palpitations
poor tolerance of heat
chronic headaches
... and more than 40 others

Step 3: Rule Out or Confirm each Possible Cause

A differential diagnosis of your symptoms and risk factors finds the likely cause of loss of vision:
Cause Probability Status
Cataracts 96% Confirm
Aspartame/Neotame Side-Effects 20% Unlikely
Multiple Sclerosis 5% Ruled out
Brain Tumor 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.

If you indicate eye problems, The Analyst™ will ask further questions including this one:
Has your vision become worse within the past few years? In other words, do you have greater difficulty seeing with one or both eyes, especially when the lights are dim?
Possible responses:
→ Don't know
→ No, my vision has remained about the same
→ Yes, it is slightly worse now (slow decline)
→ Yes, it is a lot worse now (rapid decline)
→ Yes, I have (almost) completely lost my sight
Based on your response to this question, which may indicate no change in vision, gradual loss of vision, rapid loss of vision or being blind or nearly blind, The Analyst™ will consider possibilities such as:
Brain Tumor

Loss of vision in one or both eyes could indicate a brain tumor.

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