Let us go through various components of Integrated Marketing Communication: 1  The Foundation - As the name suggests, foundation stage involves detailed analysis of both the product as well as target market. It is essential for marketers to understand the brand, its offerings and end-users.
If the PD of your basic prescription is 29.5/31.0, the PD for computer glasses would be 29.0/30.5 or 28.5/30.0. To convert a multi-focal prescription for single vision reading glasses, simply combine the Add number and the Spherical number.
What is a PD value? Great question! Your PD (pupillary distance) measures the distance from the center of one pupil to the other pupil in millimeters. This can equal one number if the left and right side have been added together or two numbers if the left and right side differ. pd value examples: 63 or 31/32.