The simplest, cheapest and safest way to correct short-sightedness is with glasses. Concave prescription lenses (called minus lenses) are used to bend light rays slightly outwards. The light rays then have a greater angle to bend back to focus when travelling through the cornea and lens. As a result, the light rays focus further back - on the retina. There is an enormous choice of glasses frames available, to suit all budgets. Glasses are seen as more acceptable these days, and younger people may even regard them as a fashion accessory.
