In CVP analysis, the contribution margin is the dollar amount remaining after deducting variable expenses from sales revenue. The unit contribution margin is the amount that each unit of sold product contributes. In this example, the unit contribution margin is $50 (price of $100 minus variable cost of $50).
Vision Problems in the U.S. estimated the population with glaucoma to be 2.7 million in 2010. This number is estimated to be 2.86 million in 2014, and will increase by nearly 50% to 4.3 million by 2032 and by more than 90% to 5.5 million by 2050.
Incidence and probability of progression to blindness due to open-angle glaucoma decreases dramatically. Glaucoma is a leading cause of irreversible blindness worldwide. It affects more than 2.7 million individuals age 40 or older in the United States â approximately 1.9 percent of this population. Glaucoma is the second-leading cause of blindness among blacks, after cataract, and the third-leading cause of blindness in whites, after age-related macular degeneration and cataract.