For many years I had quite severe dry eye (which was one side effect of lasik eye surgery done in my early 30's), and then I began to also have blepharitis in my 40's. I'd been always using Hylo Gel eye drops which helped with the dry eye, but not the blepharitis.
Whilst looking online for help with blepharitis I found these eye drops called Optimel Manuka Dry Eye Drops and although I was totally skeptical I bought them and to my surprise they became my one product that solved it all for me. In a matter of days I didn't need to use Hylo Gel anymore, and the blepharitis was gone. I know it sounds unlikely but it really happened like that for me. I was incredibly surprised.
This was almost 4 years ago, and I'm still using them. 1 drop every morning on each eye and same at night. The only thing annoying about these drops is they sting the eye for a few seconds after application, they do so every time, even after 4 years. I've become used to it and I don't mind anymore, but it wasn't nice at first. Still i continued using them because I found great relief. I've not had blepharitis in almost 4 years, and my dry eye is almost non-existent, only sometimes if I use the computer for too long I have to apply an extra drop or 2.
They're not too expensive, I buy them from iherb which I believe ships worldwide, and there are often special discounts. I hope that's helpful.