Yea. Worms in the eye will do that.
Hubby rode a motorcycle many years ago, a bug flew into his eye and penetrated it, he never felt it. I saw it in his eye and made him go get it removed and with proper treatment full recovery. He now has Retinitis from Navy cleaning Chems, and Glaucoma so bad he takes 3 different drops a day to keep pressures down. 77 and not ready to give up driving, But should with holes in your retinas.
If something is making a hole in your eye it is noticeable.
I practically live between Othomologist and Cornea Doc after botched cataract surgery, followed by Lasix to fix that, SUPER DRY EYE SYNDROME. Now all 4 tear ducts are cauterized closed. Might see my first pair of glasses in nearly 5 yrs. IF the idiots understand I now have the vision of a 45 yr old not a 67 yr old. Fixed the football shaped cornea when they did the Lasix. Chose your cataract surgeon wisely.