Precautions for children's astigmatism glasses_Industry News_

Astigmatism patients with glasses to follow a principle, is to first measure the patient's astigmatism is regular or irregular. Under normal circumstances, irregular astigmatism cannot be corrected with optical glasses. Only hard contact lenses can correct irregular astigmatism. Conversely, if it is regular astigmatism, optical spectacle lenses can be used to correct it. Especially for children with astigmatism, this point must be paid attention to when fitting glasses for astigmatism. In addition to paying attention to the above principles, children's astigmatism glasses must follow the following matters when matching glasses, so as to avoid the optical lenses that can not correct astigmatism well, for example: optometry before glasses, because children's eyes are In the developmental stage, the eye's ability to adjust is relatively good. In order to avoid errors, the diopter must be measured correctly to prevent adverse reactions such as visual fatigue when wearing it. If the measured degree is relatively low, first consider how many degrees the axial direction of hyperopia and myopia is. If it is a normal phenomenon, it generally does not need to be corrected by glasses. But regardless of the degree of astigmatism high or low, the axis must be correct to avoid leaving the patient with other new refractive errors. The best age for children's astigmatism glasses is between 3 and 5 years old. At this time, the children's eye accommodation is not too strong. It is a better age to measure the patient's astigmatism, as well as the specific situation of the axial direction. The patient is left with a better stage of other refractive errors. Children's astigmatism is divided into two types: hyperopia and myopia. For myopic astigmatism, it can generally be corrected, but if the patient has worn astigmatism glasses, O·25D ~ 0.50D should be appropriately reduced to avoid visual objects during wearing. Blurred vision, dizziness and other phenomena, patients with hyperopia and astigmatism should be reduced. The most important thing for children's astigmatism glasses is to measure the diopter, that is, if the measured degree is lower than 75°, there is no need to wear optical glasses for correction, and if the diopter is more than 100°, you must wear moderate optical glasses Carry out treatment to avoid a sharp increase in the degree, which affects the clarity of the eyes.