Related Experiment Video
Updated: Jun 28, 2026
07:12
A Gaze-Contingent Display Framework for Perceptual Learning Research with Simulated Central Vision Loss
Published on: April 11, 2025
Is there evidence for continued learning over multiple years in perimetry?
Stuart K Gardiner1, Shaban Demirel, Chris A Johnson
1Devers Eye Institute, Legacy Health System, Portland, Oregon 97232, USA. sgardiner@deverseye.org
Summary
Learning effects in visual field testing are prolonged, especially with short wavelength automated perimetry (SWAP). This suggests visual field deterioration may be underestimated in early glaucoma diagnosis.
Area of Science:
- Ophthalmology
- Visual Science
Background:
- Learning effects in perimetry are well-documented, with initial tests showing higher variability and lower mean sensitivity (MS).
- Previous studies often used testing frequencies not representative of clinical practice.
Purpose of the Study:
- To evaluate learning effects in perimetry at clinically realistic, less frequent testing intervals.
- To determine the validity of existing conclusions on learning effects under these conditions.
Main Methods:
- 160 eyes of 80 subjects with suspected or early glaucoma were tested annually for 8 years.
- Standard automated perimetry (SAP) and short wavelength automated perimetry (SWAP) were used.
- All subjects had prior experience with both perimetry types.
Main Results:
- For SAP, MS improved in the first year, stabilized until year 5, then declined.
- For SWAP, MS continued to improve for up to 6 years.
- These prolonged improvements suggest learning effects may counteract age and disease progression.
Conclusions:
- A prolonged learning effect is evident in SWAP, with MS increasing for several years.
- A similar, though smaller, prolonged learning effect may exist for SAP.
- Visual field deterioration may be underestimated during these prolonged learning periods.
