Description Population-based study, in Sabah and the Eastern Zone of Malaysia, using the WHO-recommended Rapid Assessment of Avoidable Blindness (RAAB) methodology Design Population-based cross-sectional study Inclusion criteria All residents aged 50 years and above Exclusion criteria Non-residents Place of study: Sarawak and Eastern Zone (Kelantan, Terengganu and Pahang) Justification for the selection of the Zones • KK-KKM programs have been officially initiated, implemented and monitored in Sarawak and Eastern Zones based on service demand, before the survey. Service coverage is for the whole zone in the form of mobile and transit. This service needs evaluation to assess the effectiveness of service delivery and its impact on the population with the aim to improve the program. Methodology Fieldwork – Cross-Sectional Population Survey using RAAB7 methodology Study Objectives 1.To determine the Prevalence of Blindness 2.To determine the Prevalence of Cataract Blindness by level of Visual Acuity 3.To determine the Cataract Surgical Coverage and effective Cataract Surgical Coverage by level of visual acuity (<6/12,<6/18,<6/60 and 3/60) 4.To measure the Outcome of Cataract Surgery.