Devices

Telescopes

---

Distance vision telescopes
Distance Telescopes may be monocular or binocular. They can be spectacle mounted only in lower powers and are often prescribed as hand held devices. When they are spectacle mounted they can be used in sedentary activities where increased magnification is required. Due to the widespread availability and large diversity in prices of hand held binoculars we have omitted these devices from this chapter.

Products from the following companies are listed in this section:

CTP Coil Ltd
Eschenbach Optik GmbH + Co
Keeler Ltd
Ocutech Inc

Near vision telescopes
These telescopes are designed for use at near distances and permit a larger working distance than the lens systems listed in the previous chapter. These telescopes are often used for manipulative tasks such as handwriting. In the lower powers they may be used binocularly but in higher powers are nearly always monocular. Some are flexible in their use as the magnification can be modified by adding additional caps.

Products from the following companies are listed in this section:

Eschenbach Optik GmbH + Co
Ocutech Inc