Anyone experiencing sudden vision changes while taking Duratia (dapoxetine), which is commonly used for treating premature ejaculation, should seek medical advice promptly. Specifically, they should consult a healthcare professional such as a doctor or an ophthalmologist (eye specialist) for further evaluation. Sudden vision changes can indicate various underlying issues that need to be addressed promptly to prevent potential complications. It's essential not to ignore such symptoms, as they may be indicative of serious conditions that require medical attention.