Platelet Rich Plasma drops are so effective for dry eye symptoms that finally a company is trying to isolate PRP's healing factors so to sell in bulk.

Autologous Platelet Rich Plasma (ie., they are made from your own blood) drops are well known to be very effective for numerous dry eye symptoms such as dryness, irritation, foreign body sensation, redness, itching, reflex tearing, burning, blurry vision, and eye aching. We also use PRP in eye infections or autoimmune disease related corneal keratitis or eye pain. 

Now companies are scrambling to isolate the key factors to market as a drop pharmaceutical style. It will work no doubt, but at what price tag? 

Still, it will be an excellent alternative for those patients for whom we cannot draw blood or have other medical conditions that limit the ability to provide platelets via a blood draw. 

A pilot study on patients with Dry Eye from Graft Versus Host Disease (GVHD), which causes a severe form of dry eye, showed CAM-101 drops, a fibrinogen-depleted human platelet lysate solution drop, to be safe when used 4x/day for 42 days in 54 patients comparing placebo (no drops) versus 10% CAM-101 versus 30%: 30% showed better results but both concentrations were safe. Researchers did not compare CAM-101 to autologous PRP:  likely because autologous PRP would show better results if not the same results at a fraction of the price. 

SLC

References: 

CAM-101