Eccentric out-of-focus lens

Abstract

The invention discloses an eccentric out-of-focus lens which comprises an eccentric out-of-focus region; the periphery of the eccentric out-of-focus region is peripherally out of focus, and the diopter towards a direction far away from the eccentric out-of-focus region is gradually reduced; by peripheral ring-curved design of the eccentric out-of-focus lens, the half upper part of the eccentric out-of-focus lens produces a first prism, and the half lower part produces a second prism; a base, facing the second prism, of the first prism is gradually increased. According to the eccentric out-of-focus lens disclosed by the invention, when a user sees a near object with eyes, the problem of a relatively high glasses degree of the periphery of the lens is relieved through the eccentric out-of-focus region, and long-sight out-of-focus can be reduced to facilitate myopia prevention and control; a base of the second prism is larger than that of the first prism, so that extraocular muscles can be relaxes when the user sees the near object with the eyes, so as to realize that seeing near is seeing far; in addition, the base, towards the second prism, of the first prism is gradually increased,so that a triple physiological circulation disorder of the extraocular muscles can be gradually improved to relieve the asthenopia, and the extraocular muscles can be moved to reduce eye use at a fixed distance, so as to relax the ciliary muscles.

Description

technical field [0001] The invention relates to the technical field of corrective glasses, in particular to an eccentric defocusing lens. Background technique [0002] Early prevention, effective corrective treatment and effective control of juvenile myopia have become important topics in the field of optometry. Some doctors suggest that young patients do not need to care about the level of myopia, and they can wait until they are over 18 years old before performing corneal refractive surgery. This is actually a negative view. Because before the age of 18 is the period of the fastest development of myopia, it is also the period of the heaviest learning burden, if no corrective control measures are taken, it is easy to increase the degree of myopia, especially for children with a family history of high myopia, the annual increase of 1.00D ~2.00D myopia is very likely, and corneal refractive surgery is not an absolutely safe way to correct myopia. [0003] Lenses for seeing ...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that existing corrective lenses cannot simultaneously solve the problems of near extraocular muscle fatigue, ciliary muscle fatigue and peripheral defocus

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