Chambers 20th Century Dictionary(0.00 / 0 votes)Rate this definition: Engross. en-grÅsâ², v.t. to occupy wholly, monopolise: to absorb: to copy a writing in a large hand or in distinct characters: to write in legal form: to make gross.âns.
Pupillary distance (PD) is the measurement (in millimeters) of the distance between the pupils of your eyes. Pupillary distance is an important measurement used to determine the proper lens shape and alignment of your prescription correction to your line of vision.
Pupil distance can be measured in one of two ways. The first is monocular measurement, which will result in values somewhere between 26-36 mm. The second type is a binocular measurement, in which case the number will typically be somewhere between 54-72mm.he second number (63) is the near pupil distance. This number is only needed when reading glasses are required. It you still have questions or concerns about your P.D. measurement, please call 1-800-248-9427 and one of our highly trained operators will be able to help you.