DARK ADAPTATION

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does dark adaptation mean? 

• DARK ADAPTATION (noun)
  The noun DARK ADAPTATION has 1 sense:

1. the process of adjusting the eyes to low levels of illumination; cones adapt first; rods continue to adapt for up to four hours

  Familiarity information: DARK ADAPTATION used as a noun is very rare.

 Dictionary entry details 

• DARK ADAPTATION (noun)

Sense 1

Meaning:

The process of adjusting the eyes to low levels of illumination; cones adapt first; rods continue to adapt for up to four hours

Classified under:

Nouns denoting acts or actions

Hypernyms ("dark adaptation" is a kind of...):

adaptation ((physiology) the responsive adjustment of a sense organ (as the eye) to varying conditions (as of light))

 Context examples 

The consequences of the increased pressure may be manifested in a variety of symptoms, depending upon type and severity, such as excavation of the optic disk, hardness of the eyeball, corneal anesthesia, reduced visual acuity, seeing of colored halos around lights, disturbed dark adaptation, visual field defects, and headaches.

(Glaucoma, NLM, Medical Subject Headings)