The how astigmatism with glasses

If astigmatism begiing with the Ray Ban Outlet Sunglasses, astigmatism and high, if not meet, according to the rules of reducing equivalents ball column astigmatism.

Ordinary glasses can correct rule astigmatism, irregular astigmatism, you can not use it to correct, the best way is to wear hard contact lenses to correct use, the effect is better.

With ordinary lenses astigmatism correction rules are not the same effect, the greater the effect of astigmatism worse, generally mild to moderate astigmatism can be corrected to normal, and high astigmatism corrected to good results is difficult. Especially high hypertrophy astigmatism, to see far and near vision can not see the objects dependent regulation, if not early childhood correction, depending on the function and development are subject to certain suppressed until it grew up with corrective glasses, vision correction will be even worse , often forming moderate myopically. Highly myopic astigmatism is better, although the look is far from clear, but it is also good near vision, visual function can also get some exercise is not completely suppressed corrected visual acuity generally better than highly hypertrophy astigmatism. But also need corrective glasses as soon as possible. Because corrected early, not only to promote the development of visual function, and the deformation of the object and the spatial location of the error reaction should be small, the patient can withstand even greater extent. Astigmatism with Ray Ban Wayfarer Glasses prescription given according the following principles:

In the +0.5 D hypertrophy astigmatism generally less than 90 degrees axial myopia astigmatism less than-0.5D, axial at 180 degrees (the coea by the upper and lower eyelids due to the impact of oppression, the vertical direction than the horizontal curvature of the coea radically, so vertical the refractive power of the large diameter horizontal direction weak refraction) generally do not affect vision, you can not rectify; But if fatigue or affect visual acuity, although it should be given the low degree of astigmatism lens correction.

In the elimination of symptoms or do not affect vision, under the premise of astigmatism correction should be low, especially for the high degree of astigmatism, astigmatism axis in an oblique direction, the correction should be low, otherwise the full correction patients will see the shape of things and found objects and changes in the size, in which case, hypertrophy astigmatism than myopic astigmatism greater changes.

Within 3.00D positive axis myopic astigmatism, for adolescents and isotropic should be given to correct. Oblique axis varies with the individual axes are based on ability to adapt as appropriate by many more. For more than 3.00D axis hypertrophy astigmatism, children, adolescents and exteal oblique should be appropriate to reduce the 0.50 ~ 1.00D; oblique axis of individual recipients or hard-axis should be cut some more, wearing mirror 3 to 6 months after the increase in , farsightedness, astigmatism should be cut more. Right oblique axis, different axis and degrees on the high, although the degree of reduction, the patient trials, symptoms were minor, but when talking to customers to understand prescription, wearing Ray Ban Wayfarer Polarized glasses deformation of objects and spatial errors and other phenomena, Dais will adapt over time.