I am
Having extremely blurry vision in my right eye, and occasional pain in right hand. Can you tell me what this is? Should I be worried? I am a female, 41 years old.

It is certainly serious enough to see your doctor. Any one could make uneducated guessed, not knowing your medical history, weight and physcial condition. When it is happening or more.
Does the blurred vision come and go ? Or stay blurred, how often does the hand hurt ?

But yes it does need to be seen about.