Traditional Culture Encyclopedia - Traditional festivals - Do I need mydriasis to take pictures under my eyes?
Do I need mydriasis to take pictures under my eyes?
This is mainly because teenagers have strong eye adjustment ability. If the pupil is not dilated during optometry, the adjustment of ciliary muscle can make the lens bulge and enhance the refractive power, but it can not remove the so-called pseudo-myopia, which affects the accuracy of the results. Therefore, mydriatic optometry is necessary for adolescent myopia patients.
Extended data:
According to the recovery time after mydriasis optometry, it can be divided into fast mydriasis and slow mydriasis. Slow mydriasis usually takes 2 to 3 weeks to recover. This method is more suitable for younger children and children with hyperopia and amblyopia. Rapid mydriasis, usually 1 hour 4 ~ 6 times, can disperse the pupil, and can recover after 4 ~ 6 hours. Suitable for/kloc-people over 0/4 years old.
Advantages and disadvantages:
For children or pupils who can't cooperate well, mydriasis can clearly reflect light, which is more convenient for screening and reliable in objective indicators. More accurate and reliable than subjective optometry; Faster than mydriasis optometry, saving time; There is no inconvenience to the examiner caused by photophobia and poor eyesight after mydriasis. Especially for the elderly and people with glaucoma, complications after mydriasis can be avoided.
After mydriasis, it brings temporary inconvenience to the examinee, for example, the eyes are afraid of strong light stimulation for several days, and they can't see the nearby objects clearly, which affects their study and work. So some people are unwilling to accept this method. In addition, people with glaucoma can't optometry in this way. In the state of self-adjustment, optometry is prone to errors and false myopia cannot be detected.
People's Daily Online-Pupils should be dilated when taking fundus photos.
Baidu encyclopedia-mydriasis
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