I have no idea about the surgical conditions in Pakistan. It is generally a short procedure 15-20 minutes with minimal or no pain.
JCH MD
http://www.ncbi.nlm.nih.gov/pubmed/9322567
The posting by gymdandee had to do with vitamin C reducing cataract formation. There is much contradictory research and at present there is not grounds to take extra vitamin c to reduce or slow cataracts. NOTE in this study higher levels of vitamin c was associated with INCREASED formation of cataracts:
http://www.ncbi.nlm.nih.gov/pubmed/21705085
JCH MD