Rapid Campimetry-A Novel Screening Method for Glaucoma Diagnosis.

Area of Science:

• Ophthalmology
• Neuroscience
• Medical Technology

Background:

• Standard automated perimetry (SAP) and kinetic perimetry have limitations in detecting fast visual movements.
• The perception of rapid motion is crucial for retinal function but often suppressed in conventional visual field tests.

Purpose of the Study:

• To introduce and evaluate a novel rapid campimetry technique for detecting absolute scotomas in the central visual field.
• To compare the efficacy of rapid campimetry against standard automated perimetry (10-2 program) in glaucoma patients.

Main Methods:

• Rapid campimetry utilizes a bright test point moving quickly (10°/4.7s) with high contrast against a dark background in the central 10° visual field.
• Test point diameter dynamically adjusts based on distance from the fixation point (≈0.16° to ≈0.39°).
• The method was compared to SAP (10-2 program) in six glaucoma subjects.

Main Results:

• Rapid campimetry demonstrated comparable, and potentially superior, performance to SAP in identifying macular arcuate scotomas.
• The technique successfully detected narrow arcuate absolute scotomas in four subjects, which were missed by SAP.
• These scotomas corresponded to the nerve fiber layer's course.

Conclusions:

• Rapid campimetry is a promising, fast screening method for detecting absolute scotomas within the central 10° visual field.
• The technology holds potential for integration with cloud platforms and telemedical applications.
• Further systematic testing in larger cohorts is warranted based on this proof-of-concept study.