Sorry for the delayed response, the vet check-up and eye drops ran me roughly $135 US... but I also had his other eye examined, the vet drained the abscess in his eye that visit. Hopefully, this helps! Good luck :)
I had a similar issue, it started the same way and developed to the image attached.. I had to get drops for his eyes. The other eye (not shown) was much worse, it resulted in him losing it.