Toxic optic neuropathy is a condition that affects the optic nerve, leading to vision loss. It occurs when harmful substances, such as certain medications, alcohol, or heavy metals, damage the nerve fibers. Symptoms often include blurred vision, color vision changes, and in severe cases, complete vision loss. The condition can be diagnosed through a comprehensive eye examination and imaging tests. Treatment focuses on removing the source of toxicity and may involve supportive care. Early detection is crucial, as prompt intervention can help prevent further vision deterioration and improve outcomes for affected individuals.