This National Eye Health Week (21st-27th September) a Cardiff doctor is highlighting the importance of looking after your eyes after he almost lost his sight. Dr Inderpal Singh, 46, a consultant physician, experienced a sudden deterioration in his sight while at work in May. “I suddenly had a very gritty feeling in my eyes, followed by pain, redness and blurred vision that got worse over the next four hours,” said Inderpal. By the time I got home I could hardly…