Is this issue of recent onset or have you had this for a while now? Do you wear glasses or contact lenses? Have you had your eyes checked by an eye specialist in the recent past?
Next Steps
You should set up an appointment with a qualified eye care specialist as decrease in vision in either eye should be carefully evaluation. If the loss in vision is sudden or acute, it is all the more important to have your eyes examined and diagnosed and the examining doctor would then recommend a line of action.