Help's you and Zeus when Mom is a doctor. Not familiar with lopaint. Ask Mom if it's in the carotenoid family ? I know of lycopene but never heard of lopaint. Being a very old timer prevention is key to most all turtle problems.
Give Mom an extra hug for Zeus !
The eye lids look much better and the eye's are clear !
I would still check into your water supply on the chlorine and or chloramine ? It does hurt and or burn the eyes / lids on turtles. Especially since you stated " didn't use water conditioner" , watch that. Even being an aquatic turtle in water a lot if water is off may of gotten dehydrated by not drinking and the eye lids being so thin were the first sign of that. For my 55 years with turtles I always keep a notebook on what I do. Still to this day I do that , make a check list and use it to help steps when doing maintenance. Note any changes you make to keep track of results good or bad. Don't get to a point it's so routine you forget something. Start using drops or let water set out as suggested. Control your maintenance more will help prevent this from happening again. A cure is great and only the first step. Understanding and finding what caused the problem is the other step so to prevent it from happening again. Enjoy your turtles ! They are great pets ! By the way Piggley say's Hi !