I have used a young guy called Mr Honey Boy both last year and this year. He is the brother of the famous Mr Honeyman. Last year I got 2 pair of progressive glasses from him for about $140 per pair and they are clearer than the ones I bought in Australia.
This year he has just now started on his own and has been fully trained. He can measure your prescription from your glasses or he can test your eyes.
I am getting Progressive and polarised sunglasses from him this year for about $350. The polarising is nearly $100 alone.
He will come to you and deliver to you. He is a really wonderful and helpfull young man.
I highly recommend him. His Bali # is +6281 999 681 866.