I am long sighted so need glasses for reading. I used to just buy off the shelf but then suddenly none seemed quite right, so I saw an optician. I had a full examination/test and a pair of new glasses. They weren't right either, made my head hurt, my eyes ache and feel hot and tired. Optician insisted they were true to the prescription, so I went somewhere else and had another test and check up. All fine, and prescription same as other! Another new pair of glasses later and I have the same problem. I just can't use them, its too uncomfortable in terms of sore eyes, blurriness, headache. I can barely read these days because I can only cope with the discomfort for 10 mins max. So where do I go next since something really isn't right yet opticians say my eyes look healthy and that the prescriptions are right, and they cant explain my issue. Any advice would be amazing!!