Assessment of Visual Processing in Scotopic Sensitivity Syndrome Using Functional Magnetic Resonance Imaging
Visual Processing in Scotopic Sensitivity Syndrome
DOI:
https://doi.org/10.61919/jhrr.v4i3.1516Keywords:
Scotopic Sensitivity Syndrome, functional MRI, color-tinted lenses, reading speed, brain activation, visual stress, sentence comprehension, neuroimagingAbstract
Background: Scotopic Sensitivity Syndrome (SSS) is characterized by difficulties in reading, visual distortions, and discomfort, which can be alleviated with tinted lenses. The condition affects visual processing and brain function, making it essential to explore objective solutions through neuroimaging techniques.
Objective: To evaluate the effect of color-tinted lenses on reading performance and neural activity using functional magnetic resonance imaging (fMRI) in individuals with SSS.
Methods: This study involved 40 participants with SSS, aged 18 to 34 years (mean age 23.7 ± 8.4), without neurological or psychiatric disorders. Participants were assessed for reading performance with and without color-tinted lenses. Reading speed in words per minute (WPM) was measured, and fMRI scans were performed before and after using lenses. Data were analyzed using the Wilcoxon signed-rank test, and brain activations were assessed with family-wise error correction at p < 0.05.
Results: Median reading speed improved from 134 WPM to 168 WPM after using tinted lenses (p < 0.002). fMRI showed significant activation in the left middle and superior temporal gyri with lenses (p < 0.05).
Conclusion: Tinted lenses improved reading performance and modulated brain activity, suggesting a potential therapeutic role in managing SSS.
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Copyright (c) 2024 Wajiha Sohail Khan, Iqra Malik, Areej Nazeer, Anamta, Muhammad Ahmad Raza, Mohammad Waleed, Sidra Ghazanfar
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