близорукость астигматизм у новорожденных детей
According to theory Бэйтса, the reason of occurrence of anomalies of a refraction is the pressure{voltage}. At миопии this effort to see the removed objects, at гиперметропии near. Glasses only correct anomaly of a refraction, but do not eliminate the reason of its{her} occurrence. Надев glasses, short-sighted on former on a habit will strain to see far located subjects, and гиперметропик and in glasses will continue to put effort to see, for example, letters. Thus, sight will continue to worsen and in glasses. Many people, likely, noticed, that after once надели glasses, sight without them it became appreciable worse. And it not the subjective sensation caused by transition from good sight in glasses to bad without them. Check at the oculist confirms, that sight actually has worsened. In result to the person new glasses with stronger lenses leave. As the pressure{voltage} continues to take place, moreover with accumulation of effect in due course it is possible to notice, that frequency of change of glasses on new grows every year. Подробнее...
Vascular environment Г., or увеальный a path, will consist of an iris of the eye, ciliary, or цилиарного, bodies and actually vascular environment - хориоидеи. An iris of the eye, or радужка, - the most forward part of a vascular environment. In the center радужки there is a round aperture - a pupil through which rays of light will penetrate inside of an eyeball and a retina reach{achieve}. Depending on intensity of a light stream the pupil is capable to change the size: at bright light it{he} already, at weak and in darkness - is wider. The size of a pupil changes as a result of interaction of smooth muscular fibres - сфинктера and дилататора, prisoners in радужке and иннервируемых парасимпатическим and sympathetic nerves. At a number{line} of diseases there is an expansion of a pupil - мидриаз or narrowing - миоз. Радужка contains various quantity{amount} of a pigment, from ¬-рого its{her} painting (color Г.) depends . Behind радужки it is located ciliary (цилиарное) a body into which structure enters ciliary, or аккомодационная, a muscle .На an internal surface ciliary (цилнарного) bodies, in his{its} forward third, are located цилиарные shoots. Fibres are attached to them ciliary пояска (цинновы a sheaf), on ¬-рых the crystalline lens is suspended. Реснпчное the body produces an intraocular liquid. Кзади the ciliary body passes in actually vascular environment (хориоидею), edges{territories} will consist basically of vessels of various calibre. Numerous rich a pigment of a cell{cage} хорноидеи interfere with penetration of light through склеру, eliminating светорассеяние. Подробнее...