Age 38 years working on computer since 1993 daily 8 hours, suffering with shadowed vision with my left eye and blurred vision with my right eye. My family is having glaucoma.
Please help me, what are the reason(s) and how is its cure?
You really need to see an ophthalmologist. Shadow vision as you describe can be due a refractive error (need glasses) or something a serious as a retinal detachment.