катаракта внезапное ухудшение зрения

I shall add, that a key to correction of sight in conscientiousness разглядывания details in last two exercises. On a paper always there are seen fibres which can be considered, and at a window, for example, the removed house there are fine details which too can be considered in more detail. It is necessary to peer at subjects before reception of effect, and it{him} should be. Certainly, that at trainings use of glasses, contact lenses or any others " crutches for eyes " is completely inadmissible. Подробнее...

Most внутрення an environment of an eyeball - the retina will consist from высокодифференцироьанных nervous elements. Микроскопически in it{her} distinguish 10 layers. The most external layer is световоспрннпмающим, it{he} is inverted to a vascular environment and will consist from нейроэпителиальных cells{cages} - sticks and колбочек, perceiving light and colors. The following layers are formed by cells{cages} conducting nervous irritation and nervous fibres. Nervous fibres form an optic nerve. Area most выесокого sight in a retina is the so-called yellow stain with central ямкой, containing only колбочки. Подробнее...