It would be better to get the eye examined by an ophthalmologist so as to check for the vision ( should be 20/20 in both eyes and N6 for near). If the vision is within normal limits as mentioned above, there could be an issue of dry eyes
. You can try lubricating eye drops for the same ( available over the counter- Refresh tears eye drops 1 drop 4 times a day). If the vision is less than normal then you must wear glasses for the same. As for the feeling of tiredness
, I guess you must consult your physician for a complete exam so as to detect the cause of the above symptoms( work stress/ hormonal
problem/ anemia/ altered sleeping habits).