Nilay Yuksel1, Emine Akcay2, Berna Ayan1, Necati Duru3. 1. a Department of Ophthalmology , Ankara Ataturk Education and Research Hospital , Ankara , Turkey. 2. b Department of Ophthalmology , Yildirim Beyazit University, Ankara Ataturk Education and Research Hospital , Ankara , Turkey. 3. c Department of Ophthalmology , Kayseri Education and Research Hospital , Kayseri , Turkey.
Abstract
PURPOSE: To evaluate tear osmolarity (TO) in patients with epiphora caused by primary-acquired nasolacrimal-duct obstruction (PANDO), before and after an external dacryocystorhinostomy (DCR) and to compare with healthy control subjects. MATERIALS AND METHODS: Twenty eyes of 20 patients (15 women, 5 men) who suffered from epiphora for at least one year due to PANDO, and 20 eyes of 20 healthy subjects (13 women, 7 men), were included in this study. External DCR was applied to all patients with PANDO, and TO measurements were repeated during the first month follow-up visit after surgery. RESULTS: The mean period for complaints of epiphora was 1.7 ± 0.6 years (1-3). Patients had a mean TO of 282.6 ± 10 mOsm/l (range: 269-302) prior to DCR, and this increased to 297.7 ± 7.7 mOsm/l (range: 284-310) one month after DCR (p = 0.0001). Preoperative TO values were significantly lower when compared with the healthy control subjects' (301.7 ± 10.6 mOsm/l (range: 280-316) (p = 0.0001). No significant differences were detected between postoperative and control group TO values (p = 0.18). CONCLUSIONS: Epiphora due to PANDO causes lower TO values. One month after DCR, TO came to similar TO levels when compared to healthy subjects.
PURPOSE: To evaluate tear osmolarity (TO) in patients with epiphora caused by primary-acquired nasolacrimal-duct obstruction (PANDO), before and after an external dacryocystorhinostomy (DCR) and to compare with healthy control subjects. MATERIALS AND METHODS: Twenty eyes of 20 patients (15 women, 5 men) who suffered from epiphora for at least one year due to PANDO, and 20 eyes of 20 healthy subjects (13 women, 7 men), were included in this study. External DCR was applied to all patients with PANDO, and TO measurements were repeated during the first month follow-up visit after surgery. RESULTS: The mean period for complaints of epiphora was 1.7 ± 0.6 years (1-3). Patients had a mean TO of 282.6 ± 10 mOsm/l (range: 269-302) prior to DCR, and this increased to 297.7 ± 7.7 mOsm/l (range: 284-310) one month after DCR (p = 0.0001). Preoperative TO values were significantly lower when compared with the healthy control subjects' (301.7 ± 10.6 mOsm/l (range: 280-316) (p = 0.0001). No significant differences were detected between postoperative and control group TO values (p = 0.18). CONCLUSIONS: Epiphora due to PANDO causes lower TO values. One month after DCR, TO came to similar TO levels when compared to healthy subjects.
Authors: Dan Wang; Nan Xiang; Wei Kun Hu; Ban Luo; Xiang Tian Xiao; Yin Zhao; Bin Li; Rong Liu Journal: Indian J Med Res Date: 2021-06 Impact factor: 5.274