What does D stand for?

Diopter (unit of optical power)

This definition appears very rarely and is found in the following Acronym Finder categories:

Science, medicine, engineering, etc.

Other Resources:

<< Previous	Abbreviation Database Surfer		Next >>
Dielectric Diesel Differential Diffusion Coefficient Digit Digital Dimensional Dinar Diners Club (credit card) Diode		Directing Director (Drone Control; US military aircraft designation; as in D-21) Disconnect Discuss Display Distance Distance Vision District spare (Stores 100 code) Diversity Division

Samples in periodicals archive:

If you are provided with a prescription of -4 diopter and reading addition of +3 then the trifocals reading part is going to have a power of -1.

Trifocals or Bifocals - Which Do You Need?

The binocular provides 7x magnification with multicoated optics for superior light transmission and an individual diopter focus for clearer images.

United States: New Products from Spectrum San Diego, American ...

5 diopter (unit of measuring lens power) of the targeted correction and 52 (93 percent) were within one diopter.

Lens implantation may treat some patients with nearsightedness

These safety glasses come in clear and smoke, and feature a magnification diopter molded into the polycarbonate lens to combine safety glasses with reading glasses.

Brand loyalty

In myopia, the diopter number is preceded by a minus (-) sign, denoting that the focus is short of the retina.

The Physics of Contact Lenses

An aiming circle on the LCD readout allows users to acquire targets rapidly and a diopter makes correcting for one's own vision a snap.

Home (in) on the range: laser rangefinders

Most of the time I have used my 28-300 mm lens, and O occasionally add a close-up diopter.

Junk cars are fun

Features include fold-down rubber eyecups, diopter for use with glasses, protective lens caps, Nikon padded carry case, neck strap and belt loop.

Nikon Compact Binoculars; Daily Mail offer of the day