Eyes are never ever something to wait on. All eye problems are considered serious by most vet clinics. It could be pannus or something else....and never ever medicate an eye issue without a vet diagnosing it....
Hopefully it is nothing, but please get him into the vet ASAP
Csabre Sch1, Hexe Sch2, SG Bengal, Lynx, Komet, Kira HGH & Kougar v Wolfstraum ~ Ziberia IPO1 ~ ATB Basha, Kougar & Kyra, Fenja, Sch3s, Cito, Sch2, Danger RH & Alice Sch1s ~Kelsey