The conceptual framework used for the study was based on system model by Von Bertalanffy. Structured knowledge questionnaire was used to assess the knowledge regarding the prevention of cataract. Sixty samples were selected using the convenience sampling method. Methods: An evaluative approach with pre-experimental one group pretest-post-test design was used in the present study.

Aim: The study aims to assess the knowledge of middle-aged adults regarding prevention of cataract, evaluate the effectiveness of structured teaching programme on the prevention of cataract and find the association between pre-test knowledge and selected demographic variables. Despite being the leading cause of treatable blindness, the lack of awareness about cataract and its treatment is still a major hurdle in decreasing the blindness in developing countries especially in the rural areas. Vision impairment due to cataract can impose a significant burden on any community. The World Health Report10 estimates that approximately 20 million people are bilaterally blind (less вЂ¦Д«ackground: Vision is considered as an important part of well-being and an inevitable factor in retaining the quality of life. The CSR is the number of operations performed in a year for a given population (usually expressed as ops/year/million population) Rates vary from 6300 in Australia8 to 100 in Nigeria.9 Figure 1 schematically shows statistics used to evaluate and audit cataract services.ДЄnalysis for cataract services per million population. There is as far as I am aware no report from industrialised countries. Coverage surveys from other parts of the world have reported: Malawi <15%,5 Paraguay 36%,6 and Karnataka State, India 40%7 for bilateral <6/60 due to cataract. As reported in the paper from Korea, coverage varies according to the level of visual acuity used to indicate surgery, being 78% in people less than 6/60 and 55% for less than 6/18. The cataract surgical coverage is defined as the proportion of patients (or eyes) with вЂњoperableвЂќ cataract, who have already received surgery. The aim of a cataract service is to operate on sufficient cataracts each year (cataract surgical rate CSR), so that everyone with вЂњoperableвЂќ cataract (visual loss justifying surgery) can receive surgery if they wish (100% coverage). The questions that therefore arise include: what is a sufficient what is a successful and what is a sustainable cataract service?2 Two articles in this issue of the BJO from Korea3 and Nepal4 evaluate cataract services using a variety of performance indicators-cataract surgical coverage, barriers to access, and outcome of surgery. The programme is called вЂњVision 2020-the right to sightвЂќ.1 Key to this initiative is the provision of sufficient, successful, and sustainable cataract services for all communities. In 1999 the World Health Organization and the International Agency for Prevention of Blindness announced a joint programme to eliminate unnecessary blindness.

2020 vision definition