used to correct long sightedness. What is hyperopia? Hyperopia is the medical term for long-sightedness. What is short-sightedness? In the case of short-sightedness, the eyeball is too long. The focal point [...] +5 dpt therefore has a reciprocal length of 1/5 metres or 20 centimetres. What is long-sightedness? In the case of long-sightedness, the eyeball is too short. The focal point of the eye is behind the retina [...] case of spectacle lenses, negative dioptre values correct short sightedness, positive values correct long-sightedness. The dioptre is equal to the reciprocal value of the focal length of a lens measured in

Cleaning of stubborn dirt with short, firm bristles. 2.) Large-area cleaning of loose particles with long, soft bristles.Product overview

Cleaning of stubborn dirt with short, firm bristles. 2.) Large-area cleaning of loose particles with long, soft bristles.Product overview

impairment and even complete blindness. In the case of simple glaucoma, central vision can remain for a long time. Vision specialists

pigmentosa Diabetic retinopathy Cataract Glaucoma Eye disease In addition to short-sightedness and long-sightedness, our visual acuity can also be restricted by a variety of eye diseases. Most of these

it easier to read tables.As they only magnify in one direction, they allow strainfree reading over long periods of time.Product PropertiesMagnifying rulers only magnify in one direction, the height of the

it easier to read tables.As they only magnify in one direction, they allow strainfree reading over long periods of time.Product PropertiesMagnifying rulers only magnify in one direction, the height of the

it easier to read tables.As they only magnify in one direction, they allow strainfree reading over long periods of time.Product PropertiesMagnifying rulers only magnify in one direction, the height of the

it easier to read tables.As they only magnify in one direction, they allow strainfree reading over long periods of time.Product PropertiesMagnifying rulers only magnify in one direction, the height of the

it easier to read tables.As they only magnify in one direction, they allow strainfree reading over long periods of time.Product PropertiesMagnifying rulers only magnify in one direction, the height of the