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.
The âadd powerâ measurement is a requirement for bifocal and multifocal contacts in order describe the amount of additional power of the lens required to assist with near vision. The âadd powerâ measurement is always indicated by a plus sign (+).