Disturbance of vision functions occurs for various reasons. It can be:
- ophthalmic diseases;
- hereditary predisposition;
- prolonged eye strain, etc.
One of the options for non-pharmacological correction of vision is wearing glasses with holes (perforating glasses).
How do the glasses with holes work?
Glasses in the hole for improving vision are plastic plates with many small holes, arranged in staggered order, framed by plastic, less often metal, frames. The principle of the action of black glasses with holes is based on the effect of a pinhole camera or stenstop. Due to the small size of the aperture, the scattering of light on the retina is reduced, and the resulting image becomes sharper and sharper.
Do glasses with holes help restore vision?
The question of the effectiveness of the action of glasses-simulators raises serious discussions. Some specialists-ophthalmologists believe that this device does not have a therapeutic effect, and buying perforating glasses is a waste of money.
Other oculists believe that the systematic use of glasses with holes helps in a timely manner to relieve tension from individual eye muscles, and also contributes to creating a certain load on the weakened muscles. A long and regular eye exercise with the help of such glasses is aimed at increasing visual acuity by 0.5-1.0 diopters. It is rare to achieve great results in restoring vision.
Indications for the use of perforation glasses
Glasses for vision correction in the hole are recommended for use in the following cases:
- farsightedness;
- myopia;
- astigmatism;
- anisometropia (different visual acuity in the eyes);
- presbyopia (lens change);
- asthenopia (eye strain).
It is forbidden to use perforating glasses when
How to use glasses with holes?
To achieve the necessary therapeutic effect, it is necessary to use eyeglasses-simulators for about half an hour a day. In professional activities involving a significant visual load, it is recommended to wear glasses for 10 minutes after every 1-1.5 hours of operation. It is important not to focus on one subject at a time, but to look at intimate and more distant objects, making your eyes move constantly. The duration of the treatment course is at least one year.