Snellen charts, letters and numbers, symbols can also be used which are displayed at a specified distance via charts or test symbol projectors. Despite their differences in appearance, all these test symbols

resolution digital camera with a specially calculated lensGenerous depth of field for variable viewing distancesHigh magnification range from 2 x to 22 x (magnification on a 40-inch TV, for instance, approx. 12 [...] charger with country adapter (EU, GB, US, AU)Additional accessoriesFoldable stand for increasing the distance away comfort-carry bag silicon bumper Use/Application Supported taskReading Writing mobile-proximity

resolution digital camera with a specially calculated lensGenerous depth of field for variable viewing distancesHigh magnification range from 2 x to 22 x (magnification on a 40-inch TV, for instance, approx. 12 [...] charger with country adapter (EU, GB, US, AU)Additional accessoriesFoldable stand for increasing the distance away comfort-carry bag silicon bumper Use/Application Supported taskReading Writing mobile-proximity

black/white, white/black, black/yellow, yellow/black.Generous depth of focus for variable viewing distances.Incremental magnification from 1.7 to 12x, depending on use.Freeze-frame and image capture function:

black/white, white/black, black/yellow, yellow/black.Generous depth of focus for variable viewing distances.Incremental magnification from 1.7 to 12x, depending on use.Freeze-frame and image capture function:

tedness, the eyeball is too long. The focal point of the eye is in front of the retina and your distance vision will be blurred. The eye is not able to compensate for short-sightedness itself through its [...] between the ages of 40 and 65. You will then need a pair of glasses to be able to read at a normal distance of approximately 35 centimetres. The power of your reading glasses depends on your remaining power