Correcting LCD luminance non-uniformity for threshold Saccadic Vector Optokinetic Perimetry (SVOP)

Area of Science:

• Ophthalmology
• Optometry
• Medical Technology

Background:

• Accurate visual field assessment is crucial for diagnosing visual disorders.
• Automated Static Perimetry (ASP) is challenging for young children.
• Saccadic Vector Optokinetic Perimetry (SVOP) offers supra-threshold visual field testing for this population.

Purpose of the Study:

• To address limitations of Liquid Crystal Display (LCD) technology in SVOP for threshold determination.
• To introduce and evaluate a novel LCD luminance non-uniformity compensation approach for SVOP.
• To enable accurate and precise threshold visual field testing in young children using SVOP.

Main Methods:

• Development of a purpose-specific LCD luminance non-uniformity compensation method.
• Quantitative evaluation of the compensation approach's effectiveness.
• Comparison of SVOP performance with the Humphrey Field Analyser (HFA).

Main Results:

• The proposed compensation approach effectively corrects LCD luminance non-uniformities.
• SVOP, with compensation, achieves accurate and precise threshold visual field measurements.
• SVOP demonstrates potential as a viable alternative to current threshold ASP standards.

Conclusions:

• The developed compensation method significantly enhances SVOP's capability for threshold perimetry.
• SVOP is a promising tool for detailed visual field assessment in pediatric populations.
• This advancement may improve the diagnosis and management of visual disorders in children.