Strabismus is a rare condition. You may have a difficult time finding a character with this trait. (They may have undertaken therapeutic measures, or treated it with surgery.)
But, not to worry. If you dial in the left and right eye sliders separately for the desired effect, and (important) hold them there long enough, they're very likely to stay that way, for good.
(Mother may have warned against as much.)
Well this has great potential for an enterprising entrepreneur to develop a new range of props/geographs and textures for lazy-eye syndrome, you know the poor kids we all laughed at at school, the girl next door in my case.... ps I thought she was great and had the secret hots for her when I was 9... didn't care about her eye patch.
I know I can always do it manually with eye pose sliders I guess you'd call it and I do have a V4 character that has crossed eyes somewhere in storage, but I'd like a G3/G8 character with it. 😉