The sudden recovery of cataracts in dogs is because the albuginea on the dog's eyeballs liquefies and falls off, so it suddenly improves and even completely restores vision. However, the albuginea can easily irritate the dog's eyeballs and cause inflammation, so It is better to take your dog to a pet hospital for a checkup.
Tip:
Cataracts generally require surgery and cannot be treated with eye drops. Therefore, if your dog has cataracts, it is best to send him to the hospital for treatment.