Most are handled with acyclovir eye drops. In some cases there is so much inflammation and scarring people lose their vision and/or need surgery.
If a HerpeCide ocular drug works as well as in bunnies ("What happened to our bunnies with herpes?"), why would anybody mess around with the possibility of losing their vision and enduring several weeks of pain, blurry vision, and treatments? IF ocular HerpeCide worked well in just a few days as in rabbits, it could easily expand the current market.
Take some proportion of 500,000 people per year times $500-$2000 = many tens or hundreds of millions. I'm not sure what price the market would bear for an effective, rapid cure for ocular herpes, or what proportion of 500,000 people would seek treatment.