Hey /adv/. So this is my problem, and I hope that you help me

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Hey /adv/. So this is my problem, and I hope that you help me to take the best decision. I went to see an ophthalmologist last week, and he prescribed me glasses with "little magnification and with anti glare"
They sell those glasses there, but the thing is that they cost $180. He told me that in general my sight is healthy, but that I need the glasses because I use my computer a lot, and my eyes get itchy, dry, and everything that comes with using the computer for long periods of time. I decide to search on amazon and found one or two glasses that look good and have the anti glare thing. My question is. Is it the same if I buy them on amazon for $40 dollars, but with their amber lenses, or will I have less regrests if I go to the ones my doctor suggested and spend $180 on some glasses that are not an emergency for me? I want to save money, but I want quality. Other thing is that, because the lenses on amazon seem to be plastic, or another material but glass, give me the feeling that they are more like children glasses.