Journal
BRITISH JOURNAL OF OPHTHALMOLOGY
Volume 101, Issue 2, Pages 227-231Publisher
BMJ PUBLISHING GROUP
DOI: 10.1136/bjophthalmol-2015-308214
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Funding
- Department of Veterans Affairs, Veterans Health Administration, Office of Research and Development, Clinical Sciences Research and Development's Career Development Award [CDA-2-024-10S]
- NIH Center Core Grant [P30EY014801]
- Research to Prevent Blindness Unrestricted Grant
- Department of Defense (DOD) [W81XWH-09-1-0675, W81XWH-13-1-0048 ONOVA]
- NIH NIDCR [RO1 DE022903]
- Department of Anesthesiology, Perioperative Medicine, and Pain Management, University of Miami Miller School of Medicine, Miami, Florida, USA
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Objective To study chronic pain and mental health profiles in patients with dry eye (DE) symptoms, comparing those with high and low levels of neuropathic ocular pain (NOP) complaints. Design Cross-sectional study of 181 patients with DE symptoms (dry eye questionnaire score >= 6) seen in the Miami Veterans Affairs eye clinic. An evaluation was performed consisting of questionnaires regarding DE symptoms, NOP complaints (burning, sensitivity to wind, light and cold/hot temperatures) and pain elsewhere in the body (non-ocular). This was followed by a comprehensive ocular surface examination. The patients' comorbidities, medications, mental health (depression and post-traumatic stress disorder) and quality-of-life indices were also obtained. Patients were classified using cluster analysis into either the 'high NOP' or 'low NOP' group. Subsequent analyses were performed to examine differences in ocular and non-ocular parameters between these two groups. Results Despite similar ocular surface findings, patients in the high NOP group had very different systemic (non-ocular) profiles with higher overall pain intensity ratings, higher frequency of comorbid chronic centralised pain conditions, lower quality-of-life indices and more abnormal mental health scores than those in the low NOP group. Conclusions Consistent with a chronic overlapping pain condition, patients with DE disease with more severe NOP symptoms report more frequent and severe non-ocular functional comorbid pain disorders.
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