In case you are wondering, “DS” is short for “Diopters Sphere”, which indicates there is no astigmatism. The bifocal lenses are those glasses that have a line running horizontally through it. That line is separating the distance part of your lens from the reading part of your lens.2017-02-28
What is DVA on eye prescription?
Dynamic Visual Acuity (DVA) is a test to evaluate the vestibulo-ocular reflex (VOR). The function of the VOR is to fixate images of objects in the eyes that we see in the surroundings when we move our heads or when the head moves or when both the head as well as the visual object moves.
What does DS mean in Optometry?
If one or both of your eyes have no astigmatism, your doctor may just leave these blank or mark DS (short for diopters) to indicate that they checked and that eye (or eyes) didn't present an astigmatism. Add is any additional magnifying power that needs to be added to the lower part of your lenses .2019-09-06
What does SPH DS mean?
diopters sphere
What does VD mean on eye prescription?
The often ignored calculation of vertex distance (VD). The problem is that vertex distance-that is, the distance, measured in millimeters, between the patient's cornea and the back of the ophthalmic lens-has an effect on the perceived power of the lens. It's even more important in higher power lenses:+/-5.00D or more.2000-06-01