Fildena Chewable 100 mg contains the active ingredient sildenafil, which is used to treat erectile dysfunction (ED). If you have a history of certain vision problems, it's important to be cautious when considering the use of medications like Fildena, as sildenafil can have effects on vision in some individuals. Specifically, if you have a history of the following vision problems, you should consult a healthcare provider before using Fildena Chewable 100 mg: Non-Arteritic Anterior Ischemic Optic Neuropathy (NAION): NAION is a sudden loss of vision in one or both eyes due to decreased blood flow to the optic nerve. There have been reports of NAION occurring in individuals who have taken medications like sildenafil. If you have a history of NAION, using sildenafil could potentially increase the risk of this condition. Retinitis Pigmentosa: Retinitis pigmentosa is a genetic eye disorder that leads to gradual vision loss. Some studies suggest that medications like sildenafil might affect individuals with retinitis pigmentosa, potentially worsening their condition. Other Vision Disorders: If you have any other pre-existing vision disorders or conditions, it's important to discuss them with a healthcare provider. Certain eye conditions can make individuals more susceptible to the vision-related side effects of sildenafil. Your healthcare provider will take your medical history and specific eye condition into consideration when advising you on the use of Fildena Chewable 100 mg. They can help determine whether the potential benefits of using the medication outweigh the potential risks in your case.