During my early years when I just got aware of the fact that I will have to wear spectacles, it was quite hard for me to decide which lens quality or the frame quality I must choose from. Then a few years later, lenskart.com came into the picture and that was it. They have a variety of lenses that I can just choose from, and they also show you the different kinds of lenses with their exact benefit. On top of that, their make of spectacles is pretty much durable, unlike the ones you get from a local store, and they have wonderful customer service.
For instance, a few days back I ordered myself a new pair of specs from lenskart.com, and even though the frame looked pretty good to me at first, it didnt look well on me, and when I decided to share my concern back to the lenskart.com team, they just asked me to choose a new frame that I think would suit me better or just simply ask for a refund. Honestly, after ordering the spectacles twice, I could find the right pair for me.
Really, if this scenario would have been with someone from my local store, they wouldnt even have replaced in the first place at all.