4 Facts About Night Blindness, from Park Ophthalmology

The beginning of Daylight Saving Time was a welcome change to Triangle residents who enjoy more daylight hours in the evenings. It’s also helpful for those who find driving and other tasks more difficult at night. Beth R. Friedland MD knows that many factors can cause night blindness, which makes it hard for some patients to see their surroundings in dim light. Ophthalmologists call the condition Nyctalopia and it doesn’t mean complete blindness at night, but sometimes it can seem that way. In its continuing patient education series, Park Ophthalmology has compiled some key points about night blindness.

Park Ophthalmology assesses four important facts about the basics of night blindness:

  • Human vision: The human eye is essentially color blind in the dark, seeing only black, white and gray. All humans see less well in the dark than in bright light. In dim areas, movement is easier to see than stationary objects. It takes time for eyes to adjust from bright to low light, but those with night blindness take longer than normal to adjust.
  • Symptoms: One of the first signs people have of night blindness is trouble driving. They may also have trouble recognizing faces in a darkened setting, or navigating through a darkened room. Eyes can take up to 30 minutes to completely adjust to a darkened setting, but someone with night blindness may find even that interval isn’t enough for good vision.
  • Causes: Many different conditions contribute to night blindness. Some of those conditions include nearsightedness, medicine used to treat glaucoma, cataracts, diabetes, too little Vitamin A and keratoconus (steeply curved corneas).
  • Treatments: Depending on the cause, some night blindness can be treated. Cataract surgery can be helpful. A new prescription for contacts or eyeglasses may also make a difference. Only an Ophthalmologist can determine the cause and provide treatment.

Find out what’s causing your difficulty with night vision. Call Park Ophthalmology today for an exam with Dr. Beth R. Friedland to discuss your concerns about seeing in the dark.  Let Park Ophthalmology brighten your outlook with a comprehensive eye exam.


Park Ophthalmology welcomes patients from all areas of the Triangle and offers a wide variety of specialized services including surgery for diseases of the eye, vision examinations, eye safety information, sports medicine protective eyewear and counseling, contact lenses and evaluation, and all types of ocular diagnosis and treatment. Many types of surgery are available, including cataract and laser surgery. We are here for you and your eye and overall health. Give us a call today!

This article about the vision care is brought to you by the professional team at Park Ophthalmology located in the Triangle Region of North Carolina.

The information contained in this blog article is intended solely for informational purposes and is not intended to be offered as medical advice.


Park Ophthalmology

5306 NC Highway 55, Suite 102 (adjacent to the RTP/ Research Triangle Park)

Durham, NC 27713

Office: 919 544 5375

Fax: 919 544 5829


Park Ophthalmology North

6512 Six Forks Road, Suite 105

Raleigh, NC 27615

919 846 6915

Office Manager Jenny Whitman, e-mail: jenny.brfeyecare@ncrrbiz.com.

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