| Legends: Arceus | Makes its home in gloomy caves. Atrophied eyes have left this Pokémon blind, so it scans its surroundings via sound waves that it emits from its mouth as it flies. |
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Mind, Zubat has its own way to see:
| Brilliant Diamond | Even though it has no eyes, it can sense obstacles using ultrasonic waves it emits from its mouth. |
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There's also Nincada:
| Black/White | It grows underground, sensing its surroundings using antennae instead of its virtually blind eyes. |
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| X | Because it lived almost entirely underground, it is nearly blind. It uses its antennae instead. |
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(Weird, considering Nincada gets the Compound Eyes ability as its primary ability, which increases the Accuracy of its moves.)
Deino:
| White | They cannot see, so they tackle and bite to learn about their surroundings. Their bodies are covered in wounds. |
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| Y | Lacking sight, it's unaware of its surroundings, so it bumps into things and eats anything that moves. |
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| Sword | When it encounters something, its first urge is usually to bite it. If it likes what it tastes, it will commit the associated scent to memory. |
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| Shield | Because it can't see, this Pokémon is constantly biting at everything it touches, trying to keep track of its surroundings. |
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| Scarlet | It can’t see, so its first approach to examining things is to bite them. You will be covered in wounds until a Deino warms up to you. |
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Deino's evolved form, Zweilous, might be blind. The Pokedex is unclear, but it does say it hunts for food. Zweilous has 2 heads, but finding images showing if Zweilous has eyes or not seems notoriously difficult.
There's also Sliggoo:
| X | It drives away opponents by excreting a sticky liquid that can dissolve anything. Its eyes devolved, so it can't see anything. |
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| Alpha Sapphire | Its four horns are a high-performance radar system. It uses them to sense sounds and smells, rather than using ears or a nose. |
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| Sun | It has trouble drawing a line between friends and food. It will calmly try to melt and eat even those it gets along well with. |
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Pardon me if that's a bit long.
Surprising that 2 of the canonically blind Pokemon are Dragon-types.
Oh, & there's a good few Pokemon that lack eyes.
Like Roggenrola:
| Moon | The hexagonal cavity is its ear. It walks in the direction of sounds it hears, but if the sounds cease, it panics and topples over. |
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| Ultra Sun | The hexagonal hole is its ear. Deep in that ear is an energy core, so if you stick your hand in there, Roggenrola will be very angry! |
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