Is it safe to use dissolved cane sugar and warm water as eye drops?

No

Hello @elkoholic, Welcome to Connect. I've never tried a home remedy like dissolved cane sugar and warm water for eye drops. For me, my eyes are too important to try it without first discussing it with my doctor or an eye specialist. There are a lot of different home remedies for eye infections that may help but there are some that need more research also. Here's some information that might be helpful if you are dealing with an eye infection.
--- 6 Home Remedies for Eye Infections: Do They Work?: https://www.healthline.com/health/eye-health/home-remedies-for-eye-infection.

Are you trying to treat an eye infection or some other eye problem?