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.
How do I read my pupillary distance (PD) number? Pupillary distance, PD, is the measurement (in millimeters) of the distance between your pupils and used to ensure your customized lenses are centred directly in front of your pupils. Refer to the chart below to learn how to read your PD number.