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Teach you to understand the eye examination list (1) computer optometry list

Posting time:2022-10-06 01:23:30

Teach you to understand the eye examination list (1) computer optometry list

In recent years, myopia in children and adolescents in my country has shown a trend of "smaller" age of onset. Some children in kindergartens have already put on glasses. The threshold of myopia prevention and control has been moved to kindergartens and pre-school age to avoid the high incidence of myopia in primary school. Every semester in major kindergartens will include a basic optometry. Children usually get a computer optometry form. Faced with the dense numbers and letters on it, parents feel that it is very esoteric. Some parents even just ignore it, thinking that there should be no problem with the child at such a young age, usually because such negligence by the parents may miss the opportunity to protect the child's eyesight. As the saying goes, many skills do not overwhelm you. In fact, learning to understand optometry is also one of the skills that parents must master in the new era. Today I will give you a brief explanation. Interpretation of computer optometry "R" stands for right eye "L" stands for left eye "S" stands for myopia or hyperopia "C" stands for astigmatism "A" stands for astigmatism direction "PD" stands for interpupillary distance, pupil distance "VD": The distance from the rear vertex of the spectacle lens to the front of the cornea of ​​the eyeball Myopia: -300 degrees or less - mild myopia - 300~600 degrees - moderate myopia - more than 600 degrees - high myopia Hyperopia: +300 degrees or less - low hyperopia +300~500 Degree - moderate hyperopia + 500 degrees - high hyperopia Astigmatism: <1.00D physiological astigmatism≤2.00D-mild astigmatism 2.25~4.00D-moderate astigmatism>4.00D-high astigmatism Myopia or hyperopia, astigmatism and astigmatism The axis position is generally measured 3 times in a row, and 3 lines of data appear, followed by the 4th line of data which is the average of the previous 3 measured data (as shown in the red box in the figure). Among them, "-" before the corresponding value under "S" means myopia, and "+" means farsightedness. For example, in this prescription, the value under "S" is -2.75, indicating 275 degrees of myopia, the value under "C" is -1.0, indicating 100 degrees of myopia astigmatism, and the value under "A" is 174, indicating that The axis of astigmatism is at 174 degrees. (The axis of astigmatism is the direction with the largest refractive power, and this direction will be ground into the one with the largest refractive power when wearing glasses, so the axis of astigmatism is used by clinical opticians. In fact, we only need to know the astigmatism The degree is enough.) Please note here: If a child under 3 years old has astigmatism below 200 degrees and the eyes are not very matched, glasses should be considered; if the astigmatism degree of both eyes is basically the same, if the degree of astigmatism is below 200 degrees, the condition of the fundus is also Good, don't rush glasses. This is the result of computer optometry. Please remember that the result of computer optometry is a very rough result, not the final report of optometry. optometry results. At the same time, due to any movement of the head when measuring the degree, it is possible to cause an error in the interpupillary distance. The interpupillary distance on this prescription can only be used as a reference value. Therefore, we must not use the data of computer optometry as a prescription for glasses. Parents get the optometry list and check the data as soon as possible. If there is any abnormality, it is recommended to take the child to a professional eye hospital for further examination. The accuracy of optometry directly affects the health of the eyes. The seemingly simple optometry actually has strict standards. Love tips suggest that parents paste each checklist on the medical record book in an orderly manner, keep the child's optometry data properly, and keep in touch with the ophthalmologist. Through these data, doctors can clearly see the child's refractive development, and once a problem is found, preventive measures can be taken in time. At present, many parents put the child's file together with the real estate certificate and graduation certificate at home to ensure that it is not lost. Some parents even register and keep the results of each inspection in an excel form and update them in time, which is worth learning from. (The pictures in this article are from the Internet, if there is any infringement, please contact to delete)

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