Have a symptom?
See what questions
a doctor would ask.
Diseases » Night blindness » Summary

What is Night blindness?

What is Night blindness?

  • Night blindness: Poor vision in darkness or dim light.
  • Night blindness: Nyctalopia; inability to see clearly in dim light.
    Source - Diseases Database
  • Night blindness: inability to see clearly in dim light; due to a deficiency of vitamin A or to a retinal disorder.
    Source - WordNet 2.1

Night blindness is listed as a "rare disease" by the Office of Rare Diseases (ORD) of the National Institutes of Health (NIH). This means that Night blindness, or a subtype of Night blindness, affects less than 200,000 people in the US population.
Source - National Institutes of Health (NIH)

Night blindness: Introduction

Types of Night blindness:

Broader types of Night blindness:

What causes Night blindness?

Causes of Night blindness: see causes of Night blindness

What are the symptoms of Night blindness?

Symptoms of Night blindness: see symptoms of Night blindness

Night blindness: Testing

Diagnostic testing: see tests for Night blindness.

Misdiagnosis: see misdiagnosis and Night blindness.

How is it treated?

Doctors and Medical Specialists for Night blindness: Ophthalmologist ; see also doctors and medical specialists for Night blindness.
Treatments for Night blindness: see treatments for Night blindness
Research for Night blindness: see research for Night blindness

Name and Aliases of Night blindness

Main name of condition: Night blindness

Other names or spellings for Night blindness:

Nyctalopia Source - Diseases Database

Nyctalopia, Moon blindness
Source - WordNet 2.1

Retinol Deficiency, Vitamin A Deficiency, Xerotic Keratitis, Keratomalacia
Source - Office of Rare Diseases (ORD) of the National Institutes of Health (NIH)

Night blindness: Related Conditions

Research the causes of these diseases that are similar to, or related to, Night blindness:


By using this site you agree to our Terms of Use. Information provided on this site is for informational purposes only; it is not intended as a substitute for advice from your own medical team. The information on this site is not to be used for diagnosing or treating any health concerns you may have - please contact your physician or health care professional for all your medical needs. Please see our Terms of Use.

Home | Symptoms | Diseases | Diagnosis | Videos | Tools | Forum | About Us | Terms of Use | Privacy Policy | Site Map | Advertise