Hello My Dad has a problem where his eyes get tired after around half an hour of reading, he has to stop reading to let the aching sensation in his eyes subside. He's been to several opticians who haven't been able to diagnose/recommend anything so I wondered if anyone out there had experienced anything like this or had any suggestions .. Thanks.
Sometimes Vit A can help, especially in the form of a herb called ' Eyebright'. the name tells you something. Take in good doses when symptoms are bad.