What are the most blind animals?

Some of the most blind animals include moles, which have very poor eyesight and rely on their other senses to navigate underground. Other examples are cave-dwelling species like the Mexican tetra fish and certain species of cave-dwelling salamanders, which have evolved to live in complete darkness and have lost their eyesight over time. Additionally, some species of blind snakes, such as the brahminy blind snake, have adapted to a burrowing lifestyle, leading to their blindness. These adaptations highlight the diverse ways animals can thrive in environments where vision is less critical for survival.