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Year : 2014  |  Volume : 107  |  Issue : 4  |  Page : 205-208

Role of pterygium in ocular dryness

Department of Ophthalmology, Faculty of Medicine October 6 University, Cairo, Egypt

Correspondence Address:
Tamer H El-Sersy
MD, FRCS, 11 Montazah St., Heliopolis, Cairo 11311
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2090-0686.150654

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Aim of the work The aim of this study was to find out the relation between tear film function and pterygium. Patients and methods This study included 60 patients with unilateral pterygium from the outpatient clinic of October 6 University, with age ranging between 25 and 70 years. Pterygium was treated by simple excision in 20 eyes, by excision with B irradiation in 20 eyes, and with conjunctival autograft technique in the remaining 20 eyes. The results of tear break-up time (TBUT) and Schirmer-1 test were evaluated before and 6 months after surgery. We also included 25 healthy individuals as controls. Results This study included 60 patients (32 male and 28 female patients) with a mean age of 44.17 ± 9.25 years. Age and sex were not statistically different between the patients and controls (P = 0.24 and 0.96, respectively). The mean TBUT was 11.70 ± 2.16 s in control eyes (ranged from 8.5 to 16.0 s). However, in eyes with pterygium this value was markedly reduced to 5.91 ± 1.95 s. TBUT was statistically lower among patients compared with controls (P < 0.0001). The mean Schirmer-1 test result was 13.76 ± 2.06 mm (range 11-17 mm/5 min) in normal healthy eyes and 5.85 ± 1.86 mm (range 3-9.5 mm/5 min) in the eyes of patients with pterygium. The difference was statistically different between the patients and controls (P < 0.0001). Before surgery, the average TBUT was 5.90 ± 1.87 s. This was significantly prolonged to 7.95 ± 1.33 ± 6 months postoperatively (t = 9.97, P < 0.0001) in all our cases. Moreover, Schirmer-1 test was 6.29 ± 1.90 mm/5 min preoperatively and significantly prolonged to 9.67 ± 1.57 postoperatively (t = 27.23, P < 0.0001). Conclusion Ocular dryness in the presence of pterygium and its improvement after surgery favor the hypothesis that pterygium itself contributes to the phenomenon of disturbed tear film functions in such patients.

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