What Causes Increased Sensitivity to Bright Light?

What Causes Increased Sensitivity To Bright Light?

Increased sensitivity to bright light can have various causes, ranging in severity from 'minor' to 'very serious'. 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 increased sensitivity to bright light, 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 "increased sensitivity to bright light" as a symptom. Here are eight of many possibilities (more below):

Epstein-Barr Virus
Dry Eye
Adrenal Fatigue
Fluorosis
Infectious Mononucleosis
Macular Degeneration
Pyroluria
Lupus (SLE)

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:

prednisone use

resolved atypical recent headaches

minor mouth sores

specific muscle weakness

frequent confusion/disorientation

history of hypothyroidism

hot flashes during period

non-age-related macular degeneration

low systolic blood pressure

edema of the hands

nausea for 1-3 months

frequent severe earaches

... and more than 140 others

Step 3: Rule Out or Confirm each Possible Cause

A differential diagnosis of your symptoms and risk factors finds the likely cause of increased sensitivity to bright light:

Cause	Probability	Status
Lupus (SLE)	99%	Confirm
Pyroluria	19%	Unlikely
Macular Degeneration	14%	Unlikely
Infectious Mononucleosis	1%	Ruled out
Fluorosis	1%	Ruled out
Dry Eye	0%	Ruled out
Adrenal Fatigue	0%	Ruled out
Epstein-Barr Virus	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:

Sensitivity to bright light. Is daylight too strong for your eyes?

Possible responses:

→ No / don't know
→ A little - I occasionally have to shield my eyes
→ Regularly - I often need to shield my eyes
→ Usually - I need sunglasses when I go out
→ Always - I can't stand bright sun at all

Based on your response to this question, which may indicate either sensitivity to bright light or high sensitivity to bright light, The Analyst™ will consider possibilities such as:

Dry Eye

Epstein-Barr Virus (EBV)

Fluoride Toxicity

Infectious Mononucleosis - Mono

Iritis

Low Adrenal Function / Adrenal Insufficiency

Lupus, SLE (Systemic Lupus Erythematosus)

Sun or light sensitivity (photosensitivity) is experienced by 30% of sufferers.

Macular Degeneration

Those suffering from macular degeneration may be very sensitive to light or actually see lights that are not there.

Pyroluria

Vitamin B6 Requirement