Hi l am 47 years old and recently been diagnosed with early stage cataracts. My vision is still pity good, but l noticed recently my close up reading vision in my left eye is not as good but distance vision in that eye still very good, l went to the optomerist and he said its just ageing and he gave me reading glasses, could the blurring close up vision in my left eye be a symptom of cataracts or is it just ageing like the optomerist said?