Cataract 1 Cost-effectiveness 1 Extracapsular cataract extraction 1 Malaysia 1 Phacoemulsification 1 Visual function 14 clinical article 1 clinical trial 1 controlled clinical trial 1 controlled study 1 cost effectiveness analysis 1 extracapsular cataract extraction 1 hospital patient 1 household 1 human 1 lens implantation 1 phacoemulsification 1 quality of life 1 randomized controlled trial 1 single blind procedure 1 vision 1