With age, the ability to see deteriorates even in those people who throughout life have had perfect vision. As a rule, in women and men after the age of 40, presbyopia develops, or the age-long farsightedness. In general, this problem does not always seriously worsen the quality of life, however, it necessarily manifests itself when trying to read a book or a newspaper.
In such a situation, doctors recommend buying special glasses for reading. Today in each salon of optics a wide variety of similar accessories is presented, among which it is quite difficult to find a suitable model.
Types of glasses for reading
Among the wide assortment of similar accessories distinguish the following varieties:
- glasses with single-focus lenses . They provide optimal visual acuity at a distance of 30-40 centimeters from the eyes and are intended solely for reading. If earlier you already wore glasses or lenses for correction of ophthalmic problems, this accessory should become for you the second one, performing its immediate task. Under such circumstances, one usually purchases folding one-focal glasses for reading in a case to get them out for a certain time and immediately remove after reading the necessary literature;
- narrow bifocal glasses-halves for reading have lenses, divided into 2 optical zones. The upper part of such glasses is designed for detailed consideration of objects that are at a considerable distance, and the lower one for improving the view near, when the direction of the sight rushes to the ground. In particular, this is the situation that is observed when reading a book or a newspaper. Due to the rather narrow frame and the lens, divided into zones by a special feature, such glasses can be used in different situations, so they can replace several pairs at once;
- the best kind of reading glasses to date are accessories with progressive lenses , the optical power of which increases or decreases depending on how far from the eyes the object under consideration is. These glasses are designed individually for each person and are quite expensive, so not everyone can afford to purchase this device.
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Separately it is worth noting glasses for lying reading . Although doctors do not recommend reading in a recumbent position, many people can not give up this habit. In this situation, you can use special glasses that will remove excessive strain from the eyes and cervical spine. At the same time, absolutely all people can use such an accessory, regardless of age and the presence of ophthalmologic problems.
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As you can see, when choosing glasses for reading, it is important to consider not so much the appearance, as the functional features of a particular model. Although, of course, and the design should not be forgotten.
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