June 2013
Volume 54, Issue 15
Free
ARVO Annual Meeting Abstract  |   June 2013
Quality of fixation in major depressive disorder and the influence of antipsychotic medication
Author Affiliations & Notes
  • Serena Fragiotta
    University of Rome La Sapienza, Latina, Italy
  • Pier Luigi Grenga
    S.M.Goretti Hospital, latina, Italy
  • Daniela Domanico
    S.M.Goretti Hospital, latina, Italy
  • Alessandro Cutini
    University of Rome La Sapienza, Latina, Italy
  • Stefano Valente
    University of Rome La Sapienza, Latina, Italy
  • Vittoria De Rosa
    University of Rome La Sapienza, Latina, Italy
  • Enzo Vingolo
    University of Rome La Sapienza, Latina, Italy
  • Footnotes
    Commercial Relationships Serena Fragiotta, None; Pier Luigi Grenga, None; Daniela Domanico, None; Alessandro Cutini, None; Stefano Valente, None; Vittoria De Rosa, None; Enzo Vingolo, None
  • Footnotes
    Support None
Investigative Ophthalmology & Visual Science June 2013, Vol.54, 6321. doi:
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      Serena Fragiotta, Pier Luigi Grenga, Daniela Domanico, Alessandro Cutini, Stefano Valente, Vittoria De Rosa, Enzo Vingolo; Quality of fixation in major depressive disorder and the influence of antipsychotic medication. Invest. Ophthalmol. Vis. Sci. 2013;54(15):6321.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose: To evaluate retinal function and fixation stability in major depressive disorder (MDD) and to investigate the influence of antipsychotic therapy on quality of fixation, using the MP-1 microperimeter (Nidek Technologies).

Methods: 28 patients with MDD (62.5±12.51 years) with logMAR acuity ≤ 0.04 and 30 matched healthy subjects (HS) (63.62± 14.14 years) with logMAR acuity ≤ 0.0 were enrolled. According to the Diagnostic and Statistical Manual of Mental Disorders 4th edition (DSM-IV), single (296.2) or recurrent episode (296.3) of MDD were included. Patients with any other diagnosed mental illness or ocular disease were excluded. Retinal sensitivity, fixation stability, fixation points within 2 and 4 degree, and bivariate contour ellipse area (BCEA) were obtained from the MP-1 in MDD and HS. Moreover patients were divided according to therapy: 12 patients with (group A) and 16 without (group B) atypical antipsychotic drugs. Mean BCEA (deg2) was normalized by logarithmic transformation (Shapiro-Wilk test, p<0.05), and first standard deviation (68.2%) was considered. Statistical analysis was performed using ANOVA with Scheffé’s comparison and Pearson’s correlation.

Results: Mean retinal sensitivity was 15.21±4.04 dB in MDD patients and 17.29±0.86 dB in HS (p=0.01). Fixation points within 2 degree was 78.25±21.62% and 93.32±8.21% within 4 degree, 17 MDD patients had a stable fixation, 10 relatively unstable and 1 unstable fixation. Mean BCEA values in MDD patients were significantly larger than HS (0.83±0.97 deg2 vs 0.29±0.25 deg2,p=0.02). There was a positive relationship between logBCEA and age in HS (r=0.46, P=0.01), but not in MDD patients (r=0.28,p=0.14). There was significant differences in BCEA between groups (F=9.34,p=0.001). Comparison between group A and group B showed a more restricted BCEA (p=0.01) in group A, whereas no differences were observed between groups A/HS (p=0.91). Moreover in group B mean BCEA was significantly larger than HS (p=0.001).

Conclusions: Patients with MDD had a reduction in retinal function and fixation stability compared to HS. MDD patients treated with antipsychotic drugs showed a significantly better fixation stability respect to patients without antipsychotic therapy. In fact no significant differences were found when group A was compared with HS. This suggests the possible influence of antipsychotic drugs in improving quality of fixation in MDD patients.

Keywords: 753 vision and action • 550 imaging/image analysis: clinical • 524 eye movements: recording techniques  
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