Non-inferiority Study for Visual Field Measurements Using a Virtual Reality Device

Written informed consent

Inclusion criteria

for normal visual field subjects:

• Cataract yes or no
• Age range 40 - 80 years- normal visual field (MD: < +2 dB)
• Refractive error within ±5 dpt. spherical equivalent
• Astigmatism of < -3 dpt.
• Visual acuity of ≥0.3 logMar (decimal ≥0.5)
• Experience in perimetry (history of at least one perimetry examination)
• False positive or negative errors each less than 20% in each examination

Inclusion criteria

for glaucomatous subjects:

• Primary open-angle/ pseudoexfoliation/ primary angle-closure glaucoma
• Early to moderate visual field loss (MD: +2 to +12 dB)
• Refractive error within ±5 dpt. spherical equivalent
• Astigmatism of < -3 dpt.
• Visual acuity of ≥0.3 logMar (decimal ≥0.5)
• Experience in perimetry (history of at least one perimetry examination)
• False positive or negative errors each less than 20% in each examination
• Cataract yes or no

Exclusion criteria

• Exclusion criteria are subjects younger than 40 and older than 80 years
• Inability to follow the procedure
• Insufficient knowledge of project language
• The history of other ocular diseases than glaucoma or cataract or other conditions that might affect visual field testing (e.g. pituitary lesions, demyelinating diseases).
• Any history of epilepsy