Yes, you can use manuka honey to help your dry eyes, it really works. Actually it is highly recommended to reduce dry eyes. It can smooth your eyes. You can use a tinge of honey with pure ghee before going to bed and you need to make sure you use good quality honey. Do this every day!
Manuka honey has lots of utilities, such as resisting the bacterium, curing skin ulcer, comforting stomach, etc. And basically, it's a kind of honey, so manuka honey has the moisture usage.
If you insist on putting it in your daily meal, your immune system can be better. Then you won't get dry eyes so easily. If you want to cure dry eyes immediately, you'd better use eye drops.
Well, yes, manuka honey is good for dry eyes. Generally speaking, manuka honey is a natural sweetener. And according to some researches, it is often used to be a health food and also a beauty product for skin and eyes conjunctivitis. But on the other hand, it is also used to treat dry eyes. And we know that dry eyes are caused by many reasons, such as lack of water, infection. So you can just pay more attention to them.