Astenopia - weakness of view, fatigue eye when working at a close distance. There are accommodative and muscle asthenopia. Accommodative astenopia develops owing to strong pressure ccomodation eye (see), mostly in young people with farsightedness and long-visual work at close range. Muscular astenopia sometimes appears with the inherent weakness of internal direct eye muscles, but is more often at myopia, not corrected with glasses. Astenopia primarily difficulties when working close to you, feeling tired eyes, the vision of interest, headache. For the prevention and treatment of asthenopia complete correction with glasses hyperopia and myopia. During operation it is necessary to pause.

Astenopia (from the Greek. asthenes - weak and ops - eye) - the weakness or fatigue of view, manifested by pain in the eyes, headache and reduction. Astenopia occurs mainly overvoltage muscular apparatus of the eye, at least in the disease of the retina or wrong corneal astigmatism.
The main types A. - accommodative (due to stress the ciliary muscle engaged in the act of accommodation) and muscle (associated with stress domestic direct the eye muscles involved in the act of convergence).
Accommodative astenopia develops mainly at young people with hypermetropic refraction of the eye, forced to do small jobs, especially in low light. Necessary for such work in a strong and long-term accommodation stress causes A. Assignment points which corrects hyperopia, leads to rapid disappearance of the symptoms A. Muscle astenopia occurs more frequently in people with myopic refraction of the eye, not enough corrected with glasses, sometimes in congenital weakness of internal direct muscles. To correct muscle A. used prismatic glass. Sometimes you can just decentrally correcting myopia biconcave glasses, using their prismatic effect.