
Eye protection from the sun is important because ultraviolet rays can damage the surface of your eye as well as your skin. Sunglasses protect the eyes from skin cancer on the eyelids and surrounding area, as well as the eye itself. There is evidence that sun damage from UVA rays is a risk factor for various conditions including cataracts and macular degeneration.
Most ultraviolet radiation passes through cloud cover so your eyes are still exposed to risk from the sun on a cloudy day. Even in the shade, some UV rays will reach your eyes through reflection from buildings, sand, water etc...
If you wear reading glasses and want to be able to read safely outside, Reading Glasses Direct sells sun readers. Sun readers are reading glasses with UV protection. The level of sun protection provided by sun reading glasses varies greatly. All sun readers sold by Reading Glasses Direct offer UV 400 protection, which is the level of protection recommended by the NHS. Sun readers are available in the same magnifications as our other reading glasses, ranging from 1.0 to 3.0.
1. Clicking the "VIEW EYE CHART" button will bring up the reading chart in a new window or tab.
2. There you click on the print button as seen below. This will bring up a print dialog. 
DO NOT select Print from the file menu.
3. In this dialog, set the Page Scaling to None.
4. Click the OK button to print the chart.
1. Without glasses place the chart in front of you, at a distance of approximately 15" (40cm).
2. Read down the chart until you reach a line that you cannot read clearly and the number on the right is the lens strength you require.