Intraoccular pressure and BP

My brief profile first.  I am a 50 years old male (non-smoker and non-drinker) with a sedentary lifestyle.  The only daily physical activity I do is a round of freehand exercise for about 30 minutes.  For the major part of my life I have had a reasonably cool temperament; however, during the last ten years, I developed an aggressive nature in workplace.  More, due to certain stress-inducing situations in personal life during the past five years, I realise that I have become irritable too.  I am intending to get into a daily walk routine soon.  Also, hope to start meditation in the near future.