Looks like @noobmaster finally got new prescription glasses .. got marked improvement, but some underlying issues are still apparent

@Cybertan

I use an old half-rim Ti frame from Silhouette - broke once, and I got another one Backup is random Jippun frame from Zoff (got this cos is wifu de preferred shop)   If your eyesight is stable and doesn't change much - then get nice lens from Essilor, Hoya, Shamir .. If changing too often like need change every 6months cos wobbles around - can get something cheaper till it stabilises.   Most of the shops already mentioned liao - can try New China Opticians and Kwong Shin as well.

My current spec also use essilor varilux lens. More than 2 years no yellowing and peeling on the surface of lens.