Night Blindness

Night blindness also known as nyctalopia. The term night blindness implies that a person can’t see at night, it isn’t the case. A person diagnosed with night blindness experience has poor vision at night or dimly lit conditions.



Night blindness is not a disease in itself but a symptom of any disorder affecting the retina that allows a person to see in dim light.

Some possible causes:

  • Nearsightedness
  • Glaucoma
  • Glaucoma medication – that close the pupil
  • Cataracts
  • Diabetes
  • Retinitis pigmentosa
  • Vitamin a deficiency
  • Keratoconus- a progressive eye disease in which the normally round cornea thins and begins to bulge into a cone-like shape.
  • Usher syndrome
  • Cystic fibrosis or other pancreatic insufficiency
  • Genetics

Treatment is depending on the cause of someone’s night blindness the treatment may be a new prescription for glasses, medication or surgery.


Your email address will not be published. Required fields are marked *