Glaucoma Clinic Monitoring Over 6 Months Using Online Circular Contrast Perimetry in Comparison with Standard...

Area of Science:

• Ophthalmology
• Medical Technology
• Visual Field Testing

Background:

• Glaucoma diagnosis and monitoring rely heavily on visual field testing.
• Standard automated perimetry (SAP) is the current gold standard but requires specialized equipment.
• Accessible, hardware-free visual field testing methods are needed, especially in resource-limited settings.

Purpose of the Study:

• To compare the outcomes of online circular contrast perimetry (OCCP) with standard automated perimetry (SAP).
• To evaluate the efficacy of OCCP as a potential tool for glaucoma screening and monitoring in a developing world context.

Main Methods:

• A longitudinal observational study involving healthy volunteers and stable glaucoma patients.
• Participants underwent comprehensive ocular examinations, OCT scans, and visual field tests using both OCCP and SAP at baseline, 3 months, and 6 months.
• Data analysis focused on correlations and agreement between OCCP and SAP parameters.

Main Results:

• Strong correlations were observed between OCCP and SAP parameters (Mean Deviation and Visual Index/Visual Field Index) at baseline and over 6 months.
• Repeated testing showed strong agreement and correlation between OCCP and SAP.
• While SAP's Visual Field Index showed a slightly superior Area Under the Curve at 6 months, overall performance was comparable.

Conclusions:

• Online circular contrast perimetry (OCCP) demonstrates significant correlation with standard automated perimetry (SAP).
• OCCP presents a viable, accessible alternative or complementary tool for glaucoma screening and monitoring.
• The study highlights OCCP's potential to improve eye care accessibility in developing regions.