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Utility assessment among cataract surgery patients
Seang-Mei Saw1, Gus Gazzard, Cesar Gomezperalta
1Department of Community, Occupational and Family Medicine, National University of Singapore, Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Republic of Singapore.
Journal of Cataract and Refractive Surgery
|May 19, 2005
Summary
Utility values for patients undergoing cataract surgery were assessed using time trade-off and standard gamble methods. Lower utility values correlated with poorer visual function and difficulty with bright light, suggesting these factors impact quality of life.
Area of Science:
- Ophthalmology
- Health Economics
- Quality of Life Research
Background:
- Cataract surgery is a common procedure aimed at restoring vision.
- Understanding patient utility values is crucial for assessing the impact of surgery on quality of life.
- Previous research has explored utility values in various ocular conditions.
Purpose of the Study:
- To evaluate the utility values (time trade-off, standard gamble for death, standard gamble for blindness) of patients scheduled for cataract surgery.
- To explore the relationship between visual function and utility values in this patient group.
Main Methods:
- A clinic interview was conducted with 217 Chinese patients scheduled for cataract surgery at a tertiary eye hospital in Singapore.
- Adapted VF-14 questionnaire was used to assess visual function.
- Time trade-off, standard gamble for death, and standard gamble for blindness utilities were measured.
Main Results:
- Mean utility values were 0.77 (time trade-off), 0.77 (standard gamble for death), and 0.76 (standard gamble for blindness).
- Lower utility values were associated with lower scores on the VF-14 (visual function).
- Patients reporting difficulty seeing in bright light also exhibited lower utility values.
Conclusions:
- Utility values for cataract surgery patients are comparable to those with other chronic eye diseases.
- Worse visual function and difficulty with bright light are linked to lower utility values in cataract patients.
- These findings highlight the importance of visual function beyond visual acuity in assessing the benefits of cataract surgery.