Can eyesight drop suddenly within a few days restore

If the sudden vision decline within a few days can be recovered, and the specific condition, analysis is as follows:

If the sudden vision decline within a few days is conjunctivitis, keratitis, scleritis and other inflammatory diseases caused by, and the condition is not serious, there is no corneal ulcer, scar or progression to corneal perforation, general through standardized treatment vision can be improved, or even return to normal. If the sudden vision decline within a few days is glaucoma, corneal ulcer and other reasons, and the condition is serious, there has been optic nerve atrophy, vision may not return to normal.