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Knowledge, perception and practice towards blue-blocking lenses among optometrists.
Shonraj Ballae Ganeshrao1, Nagarajan Theruveethi1, Krithica Srinivasan1
1Department of Optometry, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, India.
Clinical & Experimental Optometry
|May 31, 2023
Summary
Indian optometrists often prescribe blue-blocking lenses based on advertisements, not scientific evidence. Developing clinical guidelines is crucial for evidence-based practice regarding blue light protection.
Area of Science:
- Ophthalmology
- Optometry
- Public Health
Background:
- Increased use of digital devices and LED lighting necessitates understanding blue light exposure.
- Blue-blocking lenses are commercially available, but clinical guidelines for their prescription in India are lacking.
- Practitioners' knowledge, attitudes, and perceptions significantly influence prescription patterns.
Purpose of the Study:
- To assess the knowledge, perception, and practice patterns of Indian optometrists regarding blue-blocking lenses.
- To identify factors influencing the prescription of blue-blocking lenses among eye care practitioners in India.
Main Methods:
- A cross-sectional online survey was conducted among Indian optometrists.
- The survey included 29 items across four domains: knowledge, practice, perception, and demographics.
- Descriptive analysis and logistic regression were used to analyze the data.
Main Results:
- Approximately 50% of participants demonstrated adequate knowledge of blue light.
- 52% of optometrists prescribed blue-blocking lenses frequently.
- Prescribing likelihood increased significantly when practitioners perceived blue light as a cause of computer vision syndrome or believed in adequate scientific evidence.
Conclusions:
- Prescribing practices for blue-blocking lenses in India are not consistently evidence-based, with advertisements often cited as the primary information source.
- Awareness, knowledge, education, and practice type did not significantly impact prescription decisions.
- There is a clear need for evidence-based guidelines to standardize the prescription of blue-blocking lenses.
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