Myopia, as we all know, but do you know how to distinguish between true and false myopia? There are a lot of parents find their children to see things like watch TV to squint, close, like rubbing eyes with hands, and the child class can’t see the blackboard clearly, so parents worry that their child is it right? Really got myopia. True and false myopia should be how to distinguish?
The Department of Ophthalmology experts, first put forward the concept of “pseudo myopia”, but not for adolescent myopia, but for hyperopia. Because the hyperopia was far from clear, see nearly more fuzzy, so look far see nearly all require the use of regulation, regulation resulting in excessive tension or spasm, the symptoms such as some myopia: blurring distant vision, near vision, squinting slightly clearly see things; pupil Kong Yanguang with myopia. Once the adjustment to relax (such as using cycloplegic) after the examination is hyperopia.
Therefore, the manifestation of myopia normal by Department of Ophthalmology doctors think is “false”. “Pseudo myopia” is to regulate the excessive tension (HFS) this state parlance, is a symptom, not an independent disease, like have a fever, cough symptoms is not an independent disease.
Pseudomyopia is also called the accommodative myopia. It refers to the continuous contraction, due to various reasons lead to excessive regulation of ciliary muscle spasm of accommodation, form, make the lens increased diopter, eye in myopic state. In the regulation of paralysis, the myopia can disappear. Because at this time did not form true myopia, but an adjustment function is too strong phenomenon, it is also called the accommodative myopia. Accommodation tension size and maintain the length of time on behalf of the pseudo myopia degree.
Pseudomyopia what characteristics?
A. Far below the near vision acuity.
B. Vision is not stable: since pseudomyopia is adjusting the reaction caused by abnormal, in the near to see far, the gradual relaxation process, visual acuity can be improved, then close and variable.
C. The various treatments currently used for treatment are effective, and after stopping treatment and decreased vision.
D. Since teenagers diaojieli is strong, so it is easy to occur pseudomyopia, but few engaged in the work of men may also occur. With the increase of age, adjusting the reaction time gradually increased, the old man in the eyes look far may also occur transient myopia see suddenly near, also known as the physiological pseudomyopia.
The expert reminds, children pseudomyopia patients, should pay attention to eat less sugar, and carbohydrate food or cook the excessive protein foods, can reduce the incidence of myopia. Eating too much sugar will make stock in trace element chromium reduction. Excessive intake of cooking excessive protein foods, can make the body calcium metabolism is abnormal, cause calcium deficiency.
Chromium and calcium to these two elements directly affect the regulation of intraocular pressure, if the chromium, calcium content in the normal state of balance, can maintain a normal intraocular pressure, so as to prevent myopia. So in the daily diet, eat less sugar and cook over protein foods. And pay attention to supplement the body trace elements Cr, ca. Chromium-rich foods are: beans, wheat, egg, chicken, pork, butter. The chromium, calcium rich food reasonable daily diet, in order to achieve the regulation of diet to prevent formation of myopia.