Many people today are dependent on Glasses . Wearing a visual aid, however, causes certain impairments in many other aspects. The use of binoculars, for example, is severely impaired because they cannot be guided completely up to the eye and therefore do not allow a complete view.
Especially for people with higher visual impairments, the use of normal binoculars is therefore almost impossible.
Requirements for Glasses wearers Binoculars
Binoculars also for Glasses wearers
The biggest problem that eyeglass wearers encounter when using binoculars is the eyepiece. The term eyepiece refers to the lens into which the user looks. In binoculars, this lens is usually protected by a frame (known as an eyecup) and is about 5 – 25 mm from the eye.
This distance is recommended for good vision. Glasses wearers cannot fully reach the eye through the eyecup, which ensures this distance for the user, making it difficult to use.
It is therefore important for Glasses wearers of binoculars that the eyepiece can be brought as close as possible to the spectacles. This is made possible by special mechanisms on some models that allow the eyecup to be folded down or even removed completely.
There are numerous variants that allow people with visual impairments to use binoculars. The following options are suitable as special developments:
- An adapted eye-relief (shorter distance to the eyepiece so that it can be placed directly on the Glasses .
- An adapted eyecup (enlarged so that it can enclose the entire eyeGlasses )
- An adapter for the eyecup (to optimize the gap between frame and Glasses )
- Binoculars with adapted vision (usually through several lenses)
The variants are in different price ranges, but all of them are not very cheap. The most practical is an adapter for the eyecup, as this makes them universal and suitable for almost any binocular.
Special binoculars for Glasses wearers usually do not cost much more than conventional binoculars, but the adapter is a more sensible investment. A pair of binoculars for Glasses wearers with reinforced lenses are usually much more expensive.
Binoculars and contact lenses
Contact lenses are a good substitute for Glasses and make the use of binoculars easier. Since not everyone can tolerate contact lenses equally well, binoculars are the ideal way for Glasses wearers to see far into the distance.
In the meantime, researchers from the USA and Switzerland have developed special contact lenses that allow magnification of 2.8 times and thus vision far beyond the natural range of a human being.
Among other things, these contact lenses are intended to treat age-related loss of vision due to macular degeneration.
Summary and conclusion
Using binoculars for people with visual impairments is no longer a problem. Contact lenses, a special pair of Glasses or accessories for ordinary binoculars make it possible for people who are dependent on visual aids to use binoculars without any problems.