Like many others, I have upgraded over the years, and my latest increases my screen resolution to 3840 x 2160. This results in the EVE mouse cursor being unplayable small. After browsing old posts about this, I came across a post that suggested the mouse cursor is hard coded to Windows Display resolution, so I experimented with that.
I set my Windows display to 1280 x 720 maintaining a 16:9 ratio. The EVE client still displays 3840 x 2160 but with a far more reasonable and playable cursor size.
While this work-around works for me, I am disinclined to accept the “can’t fix because it’s hard coded” excuse. Software is not stone. Code can be changed. The cursor issue has been ongoing for years. Code bugs get fixed. Code is added in events and expansions. This can get fixed too. It’s either laziness, contempt for certain members of the player base, or poor priorities that keeps Devs from resolving this issue in the client for fans with poor eyesight (like me).
Whatever the case or outcome, I hope this helps those struggling with this issue.