Assalamu Alaikum WW,
Any eye problems please ask me first. Pakistan doctors are doing free cataract surgery in puttalam on 24 TH of this month. Totally free including lens and medicine. At Kuwait hospital, Puttlam. On the other hand this lens can be bought for 3500 too.
Price varies according to brand which does not make ANY DIFFERENCE as far as the quality is concerned. I used one on my mother since I know it dies not make any difference and she has 100% vision alhamdulillah.