Ads
related to: pupillary distance distance
Search results
Results From The WOW.Com Content Network
Pupillary distance (PD), more correctly known as interpupillary distance (IPD) is the distance in millimeters between the centers of each pupil. [ 1 ] Interpupillary Distance Classifications
In addition to measuring pupil size, current automated pupillometers may also be able to characterize pupillary light reflex. Some instruments for measuring pupillary distance (PD) are often, but incorrectly, referred to as pupilometers. [2]
PD or IPD Pupillary Distance or Interpupillary Distance, respectively. It is the distance between pupil centers. BVD Back vertex distance is the distance between the back of the spectacle lens and the front of the cornea (the front surface of the eye). This is significant in higher prescriptions (usually beyond ±4.00D) as slight changes in the ...
From the measurements taken, the specialist will write an eyeglass prescription that contains at least three numerical specifications for each eye: sphere, cylinder, and axis, as well as pupillary distance (distance between eyes), and, rarely, prism for one or both eyes.
The role of the pupil is to let light in and onto the retina at the back of the eye where the light-sensitive cells are located. Humans, other primates, and dogs have round (spherical) pupils ...
Pupillary distance PERRLA Pupils equal, round, reactive to light and accommodation PH ... Working distance X/12 X months X/52 X weeks X/7 X days XP Exophoria: XT
Ad
related to: pupillary distance distance