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.
Very occasionally, people with strong prescriptions and whose pupillary distance diverges significantly from the average, may experience problems with glasses made using an average PD measurement. An incorrect PD won't harm the eyes but may cause discomfort or strain which would be noticeable upon wearing the glasses.