Safety Glasses and PPE Equipment has come along way in the last 50 years. I have several pairs of safety glasses below is a picture of two them. The black frame glasses I normally where at work and the clear frame is what I use when I am cutting grass at home.
If you wear regular glasses putting the safety glasses over them can be a pain. Some of the larger corporation have special programs for getting in prescription safety glasses. I recommend that you check with RX Safety Glasses for people who work for companies without special safety programs. RX Safety Glasses has a wide selection of glasses.