A Cochrane review «Riaz Y, Mehta JS, Wormald R, Evans JR, Foster A, Ravilla T, Snellingen T. Surgical interventions for age-related cataract. Cochrane Database Syst Rev 2006 Oct 18;(4):CD001323. »1 (abstract «»1, review «Surgical interventions for age‐related cataract»2) included 6 studies with a total of 7828 subjects. Phacoemulsification gave a better visual outcome than extracapsular surgery and gave a similar average cost per procedure in one trial conducted in the UK. Extracapsular surgery with posterior chamber lens implant and intracapsular surgery with or without an anterior chamber intraocular lens implant gave acceptable visual outcomes at 12 to 24 months after surgery.