How To Identify Myopia And Pseudomyopia?
What is myopia?
Medically speaking, myopia is one of the refractive errors in the middle of common, is due to congenital or acquired factors (e.g., do not pay attention to use eye sanitation, bad habits with the eye), make the eye diameter before and after the axial long, parallel light after entering the eye, focus on the retina, unable to form a clear image on the retina, resulting in blurred vision.
The formation factor of myopia .
External cause: basically be close distance to use an eye, long time to use an eye, light is too strong too weak, read a book when walking driving, lie to read a book, morpheus is inadequacy, write position is incorrect, contact electronic product, congenital element, food habit causes myopia.
Internal cause: basically be heredity and development factor, myopia has certain heredity factor, especially high myopia, high myopia belongs to heredity of autosomal recessive, additional development factor also can bring about myopia.
What is Pseudomyopia?
Pseudomyopia, also known as regulatory myopia, functional myopia, is due to a short period of time with the eye caused by excessive ciliary muscle continuous contraction, excessive regulation, the formation of regulatory spasm, so that the lens diopter increase, the eyeball in the myopic state, through relaxation, rest, dilated myopic intervention can return to normal vision.
The formation factor of pseudomyopia
1. Using your eyes unscientifically for a long time
The distance of the eye and book when reading or writing is often too close or lie to read a book, the light when illume does not take notice to rest or study after using the eye for long is bad also can cause false sex myopia.
2, the lack of nutrition
Children picky food, partial food, do not love to eat vegetables, fruits, coarse grains and other food, long can lead to the lack of a variety of vitamins and trace elements such as chromium, calcium, zinc in their bodies, thus prone to pseudopyopia.
3. Excessive stimulation by light and color
If the child gets online for a long time, use electronic equipment, etc., can stimulate the light and color induction of the eye, causing the eye to appear false myopia.
4, caused by ametropia amblyopia
Ametropia amblyopia of children or adolescents, if not timely correction, will also cause pseudomyopia.
How to identify pseudomyopia?
*Mydriatic identification
Through atropine eye fluid, paralyzed ciliary muscle, the naked eye vision of both eyes were tested, if the vision was significantly improved, it was pseudomyopia.
*Cloud identification method
Put on 300 degrees reading glasses, eyes, eyes will slowly appear mist like scene, 30 minutes later to take off the glasses, and then check the vision, such as enhanced vision, can be considered as pseudomyopia;
*Dynamic screening
Main test adjusts function, will discern true sex myopia and false sex myopia through this method.
