interpupillary distance


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interpupillary distance

In ophthalmology, the distance between the centers of the pupils of the eyes.
See also: distance
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
A Study on the Normal Values of Inner Canthal, Outer Canthal, Interpupillary Distance and Head Circumference of 3-21 Years Ijaws.
Ahn et al., "Effects of interpupillary distance on stereoacuity: the Frisby Davis distance stereotest versus a 3-dimensional distance stereotest," Japanese Journal of Ophthalmology, vol.
Outercanthal, intercanthal and interpupillary distances: Outer-canthal distance, inner-canthal distance and interpupillary distance are commonly used in assessment of hypertelorism.
An evaluation of the whole male and female group showed a mean interpupillary distance measurement of 62.5 [+ or -] 3.9 mm.
As with the interpupillary distance, the idea here is to start the microscope on a "setting" that the student will not use.
Most binoculars are jointed in the middle to allow adjustment of interpupillary distance but the laser must make that impossible, so the left eyepiece pivots over a little more than half an inch.
The natural accommodation was to design sturdy hinge systems that allow you to adjust for your particular Interpupillary Distance (ID), which is the center-to-center distance between your pupils.
Eye relief distance is 25 mm and interpupillary distance is between 58 and 72 mm.
The eyepiece tubes of the standard binocular head can be adjusted up or down to vary the viewing height within a range of 40 mm, while maintaining the interpupillary distance. In addition, a variable-angle ergonomic eyepiece tube option provides a continuous tilt range from 6 [degrees] to 25 [degrees] The optimum in strain-free posture is achieved by combining the variable-angle ergonomic robe with an intermediate tube.
The geometric calculations assumed an interpupillary distance (IPD) of 60 mm.