High-pass resolution perimetry and light-sense perimetry in open-angle glaucoma

Area of Science:

• Ophthalmology
• Visual Sciences
• Medical Technology

Background:

• Glaucoma diagnosis and monitoring rely on visual field testing.
• Different perimetry techniques, such as light-sense and ring perimetry, are used.
• Comparing these methods is crucial for optimizing patient care.

Purpose of the Study:

• To assess the correlation between light-sense perimetry (Octopus 1-2-3) and ring perimetry (Ophthimus).
• To evaluate the suitability of both perimetry types for glaucoma patient follow-up.
• To compare the sensitivity of each method in detecting early glaucomatous damage.

Main Methods:

• Examined 201 eyes from 107 patients with ocular hypertension or glaucoma.
• Utilized Octopus 1-2-3 (light-sense) and Ophthimus (ring perimeter).
• Analyzed statistical parameters for global and local visual field defects.

Main Results:

• Significant correlations were found between global defect parameters (GD/NC) and local deviation parameters (LV/LD) (P < 0.0001).
• Correlation between mean defect (MD) and LV/LD was less significant.
• Ophthimus parameters (GD, NC, LD) were less frequently pathological than Octopus MD or LV.

Conclusions:

• Light-sense and ring perimetry demonstrate good correlation, making both suitable for glaucoma follow-up.
• Light-sense perimetry (Octopus 1-2-3) appears more sensitive for detecting early glaucomatous damage.