Farsightedness.By Mamikijan, candidate for medical science.

 And in difference from near-sightedness a farsigthednes in children's is not progressing, later sometimes vision returning to  norm.

By school lesson about physic, an analogy between a simple photo-camera and eyes of human. Retina is photo film, cornea and lens-are lens for objective. And for getting clear image on photo film, lens of objective need to put , that theirs optic force matching for distance between them and back camera wall, where finding light sensitiveness film, optical eyes system, repeating, working right by same principle.

Why is optical failure for farsightedness, am sure ,that who wearing glasses ,that he's looking far for, maybe its of therm root,as a straight on this noted. But on the true a force for optical system for farsightedness is  less by relation to axis length , and he is good adapting to that, for  a looking far. And vision sharpness for many cases is lowered as for far and on close distances. Now in ophthalmologists,  lots of help for correction. A most tradition are glasses or contact lenses. And possible refraction surgeries on a base elements of optical eye system:cornea and lens, and change for force axis  just in nature s power. Farsigthedness having un children's and adults, inborn in childrens, but not having tendency to progressing , and in children's later she is decreasing slowly, and vision returning to norm. Explain here is simple: children is growing is increasing length for axis eye, leading slowly in right with a having refractive force  of optical system. But its not meaning,that in children found it, not need to cure or not listen advises.And in Health press shared post, that here needing using glasses when a distance  from eyes till book is not rising on 25-30 cm, for a far and on the interlocutor  these glasses not using.

And parents, not worry, that in not for children's farsightedness , that if she is small, not correcting by glasses, that complicating with strabismus or vision lowering. And  constant checking in doctor requiring  :farsightedness slowly decreasing, that is timely prescribing new glasses ,that eyes will not forget to see , and childrens constant wearing glasses and removing for night , but exception all having, thus listen advices in oculist, that he explain about to carry all day glasses or just for work for close. Advise in press ,that remove glasses, when you are talking with a close sitting friend,as for peoples when diseases displayed after 40 y.old. And all for this year lead, that they are feeling hard to write, read, words are jumping, blurring , but for far you are see good , big distance not needing in strong tension by adapting mechanisms for lens. To 40 y.old he lost and own elast and not ability adapting to this, that to see items, are finding on close distances. In optical systems of eyes are adult processes stabilizing to 60 y.old and diseases later not progressing.Within 20 years she's rising on plus 1.5 till 3 plus dioptrics. In adult farsightedness practical to write and read without glasses are not ability. In all other conditions /as for lunch to cook, cut vegetables, wash dishes, talk as close to sitting person are ability in glasses or without, a how for whom convenient.