This is a randomized controlled trial to investigate the effect of cataract surgery on the socioeconomic status of cataract patients in rural area of Southern China.
Cataract is the leading cause of visual impairment worldwide and surgery is the only effective treatment. Previous studies show that visual impairment impacts the patient's socioeconomic status(SES). However, how cataract surgery affects the SES of cataract patients in rural area of China has not been determined before. In the investigators study, cataract patients in rural area of Southern China will be enrolled and randomly divided into two groups. Cataract surgery will be performed in 4 weeks in intervention group, while performed at 1 year later in control group. The annual personal income by work, annual household income, hours in paid and unpaid work in the previous month, real estate ownership, household expenditures and quality of life will be investigated before and 1 year after surgery. Then, the difference in SES and quality of life change between two groups at 1 year later will be assessed.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
292
After enrollment, the participants will be provided antioxidant eye drops, Phacolin (Zhongshan ophthalmic center, China) for free.The eye drops will be administered 4 times per day for 1 year.Then either phacoemulsification or manual small incision cataract surgery will be performed.
After enrollment,either phacoemulsification or manual small incision cataract surgery will be performed within 4 weeks.
Huidong people's hospital
Huidong, Guangdong, China
annual personal income by work in Chinese Yuan
The annual personal income comprises of the direct and the indirect income by work. The indirect income is derived from unpaid work and calculated as follows: unpaid work time × local income per hour.
Time frame: 1 year
Health-related quality of life score
Health-related QoL score will be measured by EuroQol 5 dimensions with 5 levels (EQ-5D-5L) and self-rated health (SRH). For each dimension, participants are asked to mark between 1: "no problems" to 5: "unable to/extreme problems". Self-rated health using a vertical Visual Analogue Scale (VAS), with scores ranging from 0 (representing worst imaginable health state) to 100 (best imaginable health state). 1. mobility 2. self-care 3. usual activities 4. pain/discomfort 5. anxiety/depression f: self-rated health
Time frame: 1 year
Vision related quality of life score
Vision related QoL score will be measured by Catquest-9S, which is a short form of Catquest questionnaire. The Catquest-9SF questionnaire comprises 7 questions for performing daily-life activities and 2 global questions about difficulties in general and satisfaction with vision (1= very great difficulty; 2= great difficulty; 3= some difficulty; 4= no difficulty). 1. reading text in the newspaper 2. recognizing faces of people you meet 3. seeing prices of goods when shopping 4. seeing to walk on uneven ground 5. seeing to do needlework and handicraft 6. reading text on television 7. seeing to carry out a preferred hobby 8. difficulty in daily life 9. satisfaction on present vision
Time frame: 1 year
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