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.
If you see an âaddâ on your prescription, that tells the optician that a person needs an added magnifying power added to the lens. They typically range from +0.75 to +3.00 diopters. So now when you see a slip of paper given to you by your eye doctor that reads. OD = -4.00 SPH + 3.00 add.