Yes, vision changes can occur as a side effect of taking Manforce 100 mg, which contains sildenafil, a phosphodiesterase type 5 (PDE5) inhibitor used to treat erectile dysfunction (ED) in men. While vision changes are not common, they can occur in some individuals as a result of the medication's effects on blood flow.

The most common vision-related side effect associated with sildenafil and other PDE5 inhibitors is called "cyanopsia," which is a temporary blue tint or hue in vision. Other vision changes that may occur include blurred vision, increased sensitivity to light, or changes in color perception.

These vision changes are typically mild and transient, resolving on their own as the medication is metabolized and eliminated from the body. However, in rare cases, more serious vision-related side effects may occur, such as sudden vision loss or decreased vision in one or both eyes. These side effects require immediate medical attention.

If you experience any vision changes while taking Manforce 100 mg or any other medication containing sildenafil, it's important to contact your healthcare provider right away. They can evaluate your symptoms, determine the underlying cause, and provide appropriate guidance and treatment.

It's also worth noting that individuals with pre-existing eye conditions, such as retinitis pigmentosa or certain types of optic neuropathy, may be at higher risk of experiencing vision-related side effects with sildenafil. Therefore, it's essential to disclose any relevant medical history to your healthcare provider before starting treatment with Manforce 100 mg or similar medications.