Vidalista 10 mg contains Tadalafil, a PDE5 inhibitor used to treat erectile dysfunction (ED). While generally safe and effective when used as prescribed, it may cause some side effects, including, in rare cases, visual disturbances. Vidalista 10 mg can affect vision, though it's not common. Most visual side effects are mild and reversible, but some may be serious. Always use the medication under medical supervision and report any changes in eyesight immediately. If you experience any vision changes — especially sudden or partial vision loss in one or both eyes — stop using the medication and seek medical help right away. This could be a sign of a rare but serious complication.