My age is 56 years. I felt intense pain in left eyeball, when I woke up in the morning. Earlier too this happened 2-3 times in six month's time. Then, it had subsided in 5-10 minutes, but today it lingered on for hours. My bp was 129/85 and heart beat was 105. My bp remains usually normal and I have no sugar problem. I pass much time on desktop with caution and care i.e low contrast and brightness. No time is given to small screen like mobile phone at all.