Pupil Dilation

Time to get new glasses. Old ones are pinching my forehead and causing me to develop a rash in front of my ears which is itchy all the time. Costco is cheap. I make an appointment for my eyes even though my eyes aren't bad. Haven't had an eye exam in over two years-protocol. Now, the doctor detects some "tags" on the back of my eye ball that could potentially be tugging at my retina. However, she is not able to tell definitively whether or not this it is a real situation becuase the instrument she is using allows her to use only one eye to see into my eye. Now, to pay an extra 10 dollars, they'll dilate your pupils so that they can use a special instrument which allows then to look at the back of your eyeball with both of their eyes. Now, she wants me to let her do this so that I can help her to do her job better. It didn't make any sense to me. If she wants to do her job better, than why don't they just include the dilation in the regular eye exam instead of presurring me to pay extra so that I can find out for sure whether or not my "tag" is pulling on my retina or I have a whole or something. strange. Anyway, after 20 minutes, my pupil on my right eye dilated completely, and it was quite frightening. In day time sun light, everythign was bleached out in the one eye. I appreciate my pupils more than ever now.