Data from: Biofeedback fixation training in the rehabilitation of patients suffering from geographic atrophy
Data files
Feb 11, 2026 version files 10.26 KB
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AMD-Biofeedback_dataset_final.csv
7.31 KB
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README.md
2.95 KB
Abstract
Geographic atrophy (GA) is a progressive cause of central vision loss with limited rehabilitation options. This prospective case series aimed to evaluate the effects of biofeedback fixation training (BFT) on visual function and vision-related quality of life (QoL) in patients with GA. Eighteen patients with total central vision loss in one eye underwent BFT on the fellow eye (study eye) using the Macular Integrity Assessment (MAIA) system, which was used to select a new, previously chosenpreferred fixation locus (PRL) to stabilize fixation or adopt a new fixation locus. Patients were followed for an average of 13.2 months (3-26 months). Functional outcomes included best corrected visual acuity (ETDRS chart), reading performance (Radner test), and contrast sensitivity (Spot Checks test). MAIA parameters comprised average retinal sensitivity, fixation distance, and stability (P1, P2), and changes in the bivariate contour ellipse area (BCEA). Vision-related QoL was assessed using the National Eye Institute Visual Functioning Questionnaire-25 (NEI-VFQ-25). Following BFT, visual acuity, reading ability, and contrast sensitivity improved significantly (p < 0.02), fixation stability and NEI-VFQ-25 scores showed a positive trend. These findings indicate that BFT is a feasible and promising rehabilitation approach for patients with GA.
Dataset DOI: 10.5061/dryad.ngf1vhj81
Description of the data and file structure
The patients of our prospective case-series study were examined and followed in the Department of Ophthalmology, Semmelweis University, Budapest, Hungary, between 2023 and 2025. The study was approved by the Institutional Ethics Review Board at Semmelweis University (SE RKEB RKEB: 136/2023, SE TUKEB 248/2016, 037871/2016/OTIG, OGYÉI/42821/2019, OGYÉI/12949/2023) and carried out in accordance with the Principles of the Helsinki Declaration. Signed informed consent was obtained from each subject after explanation of the nature and possible consequences of the study.
Patient selection was carried out from among patients with GA who attended our clinic's general outpatient clinic and retina outpatient clinic.
Files and variables
File: AMD-Biofeedback_dataset_final.csv
Description: In the first column of the chart we have patient numbers. In the first row we have the examined parameters. The patient's sex has been withheld to retain patient anonymity.
Variables:
- Age group - 1: 65-69 years; 2: 70-74 years; 3: 75-79 years; 4: 80-84 years
- Eye side - 1: left; 2: right
- Training number - 1 or 2
- Time since last training session (days)
- Lens status - 0: phakia; 1: artephakia
- Spherical equivalent
- Hipertonia - 0: no; 1: yes
- Diabetes - 0: no; 1: yes
- Neurodegenerative disease - 0: no; 1: yes
- Accident - 0: no; 1: yes
- Visual acuity before (LogMAR)
- Visual acuity after (LogMAR)
- Visual acuity cfb
- Contrast sensitivity before (db)
- Contrast sensitivity after (db)
- Contrast sensitivity cfb
- Reading before (logRAD)
- Reading after (logRAD)
- Reading cfb
- Average sensitivity before (dB)
- Average sensitivity after (dB)
- Fixation distance before (deg)
- Fixation distance after (deg)
- p1 before (%)
- p1 after (%)
- p1 cfb
- p2 before (%)
- p2 after (%)
- p2 cfb
- BCEA63 before (sq.deg)
- BCEA63 after (sq.deg)
- BCEA63 cfb
- BCEA95 before (sq.deg)
- BCEA95 after (sq.deg)
- BCEA95 cfb
- composit score before
- composit score after
- social functioning before
- social functioning after
- mental health before
- mental health after
- role limitations before
- role limitations after
- independence before
- independence after
- near vision before
- near vision after
- distance vision before
- distance vision after
- color vision before
- color vision after
- peripheral vision before
- peripheral vision after
- driving before
- driving after
- Missing values were indicated "NA".
Code/software
Microsoft Excel or any CSV-reading software
Human subjects data
We confirm that we received explicit consent from your participants to publish the de-identified data in the public domain. We de-identified the data using patient numbers.