Talk to Eye Specialist on Eye Sight Issue

kindly send my question only to eye father is almost seventy years old and he is taking lexotanil which is anti anxiety he takes it because his blood pressure previously raised a lot also heart beat but after taking it blood pressure controlled but he compaints about heaviness in brain also he complaints about his eye sight which is blurred when he sees distant objects also distant object divides into multiple objects feels some focus issues irritation in eyes he consulted eye specialist he prescribed eye drops cream and diagnosed no eye related illness I am afraid may be it's glucoma not sure can anyone tell me what is what to do.. thnks in advance..