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Efficacy of MP-3 microperimeter biofeedback fixation training for low vision rehabilitation in patients with maculopathy
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Efficacy of MP-3 microperimeter biofeedback fixation training for low vision rehabilitation in patients with maculopathy
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Efficacy of MP-3 microperimeter biofeedback fixation training for low vision rehabilitation in patients with maculopathy
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Journal Article
Efficacy of MP-3 microperimeter biofeedback fixation training for low vision rehabilitation in patients with maculopathy
2022
Overview
Background
To evaluate the efficacy of MP-3 microperimeter biofeedback fixation training (MBFT) in vision rehabilitation of low-vision patients affected by macular disease with central vision loss.
Methods
Seventeen eyes (7 age-related macular degeneration, 10 myopic maculopathy) of 17 patients were included in this prospective, interventional study. The preferred retinal locus was determined by comprehensive ophthalmoscopic fundus evaluation including fundus photography, autofluorescence, optical coherence tomography, and microperimetry. The rehabilitation consisted of three 10-min sessions per eye to be performed twice per week for 20 consecutive weeks using the MP-3 microperimeter. Best corrected visual acuity (BCVA), reading speed, mean central sensitivity, the percentages of fixation points within specified regions, bivariate contour ellipse area (BCEA) and the 25-item National Eye Institute visual function questionnaire (NEI-VFQ-25) were recorded pre- and post-training.
Results
The final BCVA, reading speed and mean central sensitivity all showed significant improvements after rehabilitation (
P
< 0.0001,
P
= 0.0013, and
P
= 0.0002, respectively). The percentages of fixation points located within 2° and 4° diameter circles both significantly increased after training (
P
= 0.0008 and
P
= 0.0007, respectively). The BCEA encompassing 68.2, 95.4, 99.6% of fixation points were all significantly decreased after training (
P
= 0.0038,
P
= 0.0022, and
P
= 0.0021, respectively). The NEI-VFQ-25 scores were significantly increased at the end of the rehabilitation training (
P
< 0.0001).
Conclusion
Rehabilitation with MP-3 MBFT is a user-friendly therapeutic option for improving visual function, fixation stability, and quality of life in advanced macular disease.
Trial registration
The prospective study was registered with the Chinese Clinical Trial Registry (
http://www.chictr.org.cn/
). Trial Registration Number:
ChiCTR2000029586
. Date of registration: 05/02/2020.
