After a child has undergone slow pupil dilation, he or she must wait until after 21 days to get glasses; it is not necessary to get glasses on the same day as 21 days.
Slow pupil dilation is the use of drugs such as atropine eye drops or atropine eye ointment to paralyze the ciliary muscle, thus eliminating the interference of ciliary muscle spasm on the results of the optometry and obtaining the most accurate prescription.
After slow pupil dilation, it takes about 21 days for the pupil and ciliary muscle function to return to normal. At this time, it is necessary to conduct a trial lens examination again, that is, using the results of the pupil dilation optometry for the patient to try on, to play the role of review, and then fine-tuning, to get the final results of the prescription.
If you do not wait until 21 days, because the eye adjustment function has not been fully restored, there is no way to get an accurate review result, and there is no way to test and prescribe an accurate number of eyeglasses.
Children in need of eyeglasses should go to the ophthalmology department of a hospital in a timely manner, so that the doctor can formulate a treatment plan based on the patient’s condition, as well as determining the exact time of prescription.