Letter N
Night blindness
Also known as: Nyctalopia, Poor night vision
Night blindness symptom guide: what it can mean, possible causes, and when to seek care. Educational only.
Overview
Night blindness can relate to vitamin A deficiency, retinal disease, or cataracts. Do not drive at night if you cannot see well. An eye assessment helps.
Possible causes
- Vitamin A deficiency
- Cataracts
- Retinal disease
- Uncorrected myopia
- Certain medicines
When to see a doctor
See an eye clinician if night vision worsens or daytime vision is also cloudy.