These are the most common of the benign functional cysts (functional meaning in response to a normal menstrual cycle). Each time an egg is produced by the ovary a small cyst forms. The cyst is usually very small and ruptures when releasing the egg during ovulation.
Bifocal safety glasses not only protect the doctor (or technician or nurse) and the patient from the spread of infection, but they give the magnification needed to quickly spot the problem and read charts. In fact, we think theyâre as essential as that prescription pad and pen in every doctorâs lab coat pocket.
For many people the inconvenience of having to take glasses on and off is a reason to get a bifocal or a progressive lens. 1  The traditional bifocal (Lens #2 in the chart below) has distance prescription on the top half of the lens and reading in a half moon segment on the bottom.he main distance categories are shown above, with the colors matching the diagrammatic glasses shown next. 1  Reading and close work are usually done around 14 inches. 2  Think of intermediate as armâs length, usually 18 to 24 inches, where a lot of lifeâs activities occur. 3  The computer. 4  Room distance.