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Hyperarousal Is Associated with Socioemotional Processing in Individuals with Insomnia Symptoms and Good Sleepers
Open AccessArticle

Insomnia Might Influence the Thickness of Choroid, Retinal Nerve Fiber and Inner Plexiform Layer

1
Department of Psychiatry, Faculty of Medicine, Bezmialem Vakıf University, Istanbul 34093, Turkey
2
Department of Ophthalmology, Bezmialem Vakıf University, Istanbul 34093, Turkey
3
School of Medicine, Bezmialem Vakıf University, Istanbul 34093, Turkey
*
Author to whom correspondence should be addressed.
Brain Sci. 2020, 10(3), 178; https://doi.org/10.3390/brainsci10030178
Received: 13 February 2020 / Revised: 12 March 2020 / Accepted: 17 March 2020 / Published: 19 March 2020
(This article belongs to the Special Issue Insomnia: Beyond Hyperarousal)
Sleep may play a fundamental role in retinal regulation and the degree of retinal variables. However, no clinical study has investigated optical coherence tomography (OCT) parameters in patients with primary insomnia. All participants were evaluated with the insomnia severity index (ISI) and the Pittsburgh sleep quality index (PSQI). The retinal nerve fiber layer (RNFL), ganglion cell layer (GC), inner plexiform layer (IPL), macula and choroidal (CH) thickness were compared between 52 drug-naïve patients with primary insomnia and 45 age-gender-BMI-smoke status matched healthy controls (HC). The patients with primary insomnia differed from the HC regarding RNFL-Global (p = 0.024) and RNFL-Nasal inferior (p = 0.010); IPL-Temporal (p < 0.001), IPL-Nasal (p < 0.001); CH-Global (p < 0.001), CH-Temporal (p = 0.004), CH-Nasal (p < 0.001), and CH-Fovea (p = 0.019). ISI correlated with RNFL-Global and RNFL-Nasal inferior. The regression analysis revealed that ISI was the significant predictor for the thickness of RNFL- Nasal inferior (p = 0.020), RNFL-Global (p = 0.031), and CH-Nasal (p = 0.035) in patients with primary insomnia. Sleep disorders are seen commonly in patients with psychiatric, including ocular diseases. Adjusting the effect of insomnia can help to clarify the consistency in findings of OCT. View Full-Text
Keywords: OCT; insomnia disorder; sleep; retinal nerve fiber layer; choroid; inner plexiform layer OCT; insomnia disorder; sleep; retinal nerve fiber layer; choroid; inner plexiform layer
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Sahbaz, C.; Elbay, A.; Ozcelik, M.; Ozdemir, H. Insomnia Might Influence the Thickness of Choroid, Retinal Nerve Fiber and Inner Plexiform Layer. Brain Sci. 2020, 10, 178.

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