I don't wear glasses. I have scratches on my lenses over the pupil. Damage from installing computer network cables in the office ceiling (fiberglass insulation) in 93. I've had the same squiggly lines in my vision (when focusing near on a white surface) the same shapes, the same locations (move only when I shift point of focus left to right, up or down) for more than 25 years. Corneal abrasion I think it's called.
It sounds like you are describing two different things, corneal aberration due to the accident and then secondly floaters would be those little squiggly lines. There are things that can be done about the corneal aberration but it's very dependent on if it's due to scarring or irregular surface topography. I fit a special contact called a scleral lens mainly for pts who have had RK sx or have Keratoconus. It really releves distortion and glare for these patients due to the irregular shape of their eye. If I had to guess I'd bet it's more scarring causing the issues for you than anything. But I'm going to look more into this line with a peep sight and see if I can find any other causes.
For those who notice the line, is it completely horizontal? Does it ever shift or move? And is it everytime you use a peep sight?