Cenforce 100 mg contains sildenafil, and sildenafil can affect vision, particularly at higher doses. Possible effects include: Blurred vision A temporary blue/green or altered color tint Increased sensitivity to light Less commonly, difficulty distinguishing certain colors These effects are usually mild and temporary. In clinical trials, abnormal vision was reported more often with 100 mg than with lower Cenforce 100 mg  When to get urgent help If you develop sudden loss or significant reduction of vision in one or both eyes, stop sildenafil and seek immediate medical attention. Rare cases of NAION (a form of optic-nerve injury that can cause permanent vision loss) have been reported with sildenafil.   If you already experienced blurred or colored vision after Cenforce 100 mg, tell me what you noticed and how long it lasted—I can explain whether it sounds like a typical temporary sildenafil effect or something that needs urgent evaluation.