What causes sudden eye vision decline?

2

, keratitis

light into the eye needs to be refracted through the cornea,

when inflammation occurs in the cornea, edema will occur, thus affecting the refraction of light, resulting in a sudden decline in eye vision.

3, acute glaucoma

may lead to increased intraocular pressure in patients, elevated intraocular pressure will affect the visual conduction system, resulting in a sudden decline in vision.