Assessment of the Impact of Reading Glasses on Livelihoods and Quality of Life in the Context of Rural Bangladesh
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- Brac
- 入组人数
- 824
- 试验地点
- 2
- 主要终点
- Income (Bangladeshi Taka)
研究概览
简要总结
The issue of uncorrected Presbyopia is an emerging health and livelihoods problem in Bangladesh. Presbyopia is easily corrected with an appropriate pair of reading glasses. Non-governmental organizations and government agencies have been working in many emerging markets, including Bangladesh, to increase eyeglass coverage among low-income adults by introducing basic vision screening and the dispensing of reading glasses at the community level. While vision screening is typically considered a health intervention, the primary motivation of these organizations and government agencies is to correct blurry vision with the intention of improving adults' income earning potential.
VisionSpring and BRAC (previously known as Bangladesh Rural Advancement Committee) are two such NGOs who are partnering to implement a "Reading Glasses for Improved Livelihoods" program. VisionSpring is a social enterprise with a mission to increase access to affordable eye care and glasses in low-income settings. BRAC is an international development organization dedicated to alleviating poverty by empowering the poor.
VisionSpring and BRAC have initiated a Randomized Control Trial to assess the economic and social impact that reading glasses may have on individuals that earn less than $4 a day. The study hypothesizes that post-intervention, the adoption of reading glasses will increase productivity related to paid work, and will enhance the vision-related quality of life of adults with Presbyopia.
This experimental trial is designed to test the aforementioned hypotheses. In March 2017 a census survey was conducted in 59 villages of adults aged ≥35 and ≤65 years old in order to identify individuals with uncorrected presbyopia who would be eligible for enrollment in the study intervention. Following household visual acuity screenings, study participants were selected for enrollment. Randomization was conducted at the household level. Based on the inclusion criteria, a total of 824 random households were surveyed at the baseline. Following completion of the baseline survey, in August 2017 the treatment group was given reading glasses free-of-cost. The endline survey will be conducted in March 2018, eight months from the baseline. Although some income-related outcomes may take more time to manifest, it is anticipated that the wearing of glasses precipitates changes in a relatively short time frame. The control group will receive reading glasses at the conclusion of the endline survey.
详细描述
BRAC (previously known as Bangladesh Rural Advancement Committee) has conducted a study on the Assessment of the Impact of Reading Glasses on Livelihoods and Quality of Life in the Context of Rural Bangladesh in 2017 with financial and technical assistance from VisionSpring. The goal is to assess the impact of reading glasses on economic return and social angles for people in rural areas in Bangladesh.
BRAC and VisionSpring have developed an experimental trial to test the effects of reading glasses. The study will utilize both pre and post-intervention data to identify the causal effects. A randomized control trial is considered to be the most rigorous method of determining whether a causal relationship exists between an intervention and outcome. This is a Randomized Control Trial (RCT) conducted at the household level.
First, investigators selected 59 villages in Bangladesh where the BRAC/VisionSpring distribution of reading glasses has not been present. A census survey was carried out in the 59 villages to identify those suffering from Presbyopia who were eligible for glasses.
Second, participants were recruited through a household Presbyopia screening of individuals over 35 years old and less than 65 years old. Participants with chronic eye diseases that require regular and intensive treatment were excluded from the study.
A structured questionnaire was used at the census survey where demographic information, income, and occupation were asked. Randomization was taken place after the census survey, and a study sample was selected based on the inclusion criteria of the study which are: (1) Over 35 years of age, (2) Presbyopia positive, (3) Have never used reading glass, (4) Selective occupation (tailor, barber, self-employed artisan etc), (5) Willing to provide contact information and give informed consent.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Other
- 盲法
- Single (Investigator)
盲法说明
The primary trial outcome was the between-group difference in change in income (self-reported in Bangladeshi taka over the past 4 weeks) between baseline and follow-up surveys. Investigators collecting this information were unaware of participant group assignment.Participant masking with sham glasses was not considered ethical.
入排标准
- 年龄范围
- 35 Years 至 65 Years(Adult, Older Adult)
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •35-65 years of age (inclusive)
- •Presbyopia present (Distance vision >= 6/12 in both eyes, with inability to see the 6/13 line at 40 cm with both eyes, correctable with near glasses)
- •Has never used reading glass or any other eyeglasses
- •Selective occupations associated with the need for clear vision at near distances (tailor, barber, self-employed artisan, etc)
- •Willing to provide contact information and give informed consent
排除标准
- •Serious medical/mental and or eye condition, and
- •Meets criteria but does not wish to participate
结局指标
主要结局
Income (Bangladeshi Taka)
时间窗: 7 to 8 months.
Each participant's income data will be captured before and after the intervention by structured questionnaire (e.g: how much taka you earned in last 30 days?). The data will then be calculated before and after the intervention (8 months period) and will be compared between intervention and control group participants to see the difference.
次要结局
- Secondary outcome 1: Difficulties in performing daily wise task:(7 to 8 months.)
- Quality of vision: Likert scale(7 to 8 months.)
- Discomfort in functioning social activities(7 to 8 months.)
