Glaucoma eye drop with the least side effects

Hi! Community !

I have been diagnosed glaucoma(I.O.P is 16-19) but still losing optic nerve cells.

So my target I.O.P is 12-13 according to my eye doctor, hopfully my I.O.P is under controlling(not losing optic nerve cells).

I have researched the glaucoma eye drops(Beta Blocker) currently available in the market. 

Anyone knows eye drop with minimal side effects?  I have just found out  timolol causes cancer in long term use.

the list of eye drops found in research:

Levobunalol

Carteolol

Brimonidine

Latanoprost

Betaxolol

Apraclonidine

Brimonidine

Dorzolamide

 

Currently I have no allergy to any drug, no other diseases and  taking Travatan 0.0004%  5ML.

Thank you for your sharing!!!