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Attenuated Visual Function in Patients with Major Depressive Disorder.

Kyoung In Jung1,2, Seo-Yeon Hong1, Da Young Shin1,2

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Major depressive disorder patients exhibit impaired visual function and reduced retinal ganglion cell layer thickness. These findings suggest potential neurodegeneration in the retina associated with depression.

Keywords:
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Area of Science:

  • Ophthalmology
  • Neuroscience
  • Psychiatry

Background:

  • Major depressive disorder (MDD) is a prevalent mental health condition.
  • The study investigates potential ocular manifestations in MDD patients.
  • Retinal ganglion cells (RGCs) are crucial for visual processing.

Purpose of the Study:

  • To examine visual function in MDD patients.
  • To assess structural changes in the retinal ganglion cell-inner plexiform layer (GCIPL) in MDD.
  • To correlate visual and structural findings with depression severity.

Main Methods:

  • Cross-sectional study comparing 49 MDD patients and 50 healthy controls.
  • Standard automated perimetry (SAP) for visual field testing.
  • Spectral-domain optical coherence tomography (SD-OCT) for GCIPL thickness measurement.

Main Results:

  • MDD patients showed significantly higher pattern standard deviation (PSD) in visual fields (P=0.017).
  • Reduced minimum GCIPL thickness was observed in MDD patients compared to controls (P=0.015).
  • Hamilton Depression Rating Scale scores correlated with PSD and GCIPL thickness, with age and depression severity predicting PSD.

Conclusions:

  • Visual function is demonstrably decreased in MDD patients.
  • GCIPL thickness is reduced in MDD patients, indicating RGC layer thinning.
  • Retinal neurodegeneration may be a component of the pathophysiology of depression.