Comparative Study between Intraocular Pressure and Refractive Error Among Attendant of Valiaser Clinic Hospital 2011-2012

Refractive errors are common eye problems which is a risk factor for impaired vision and glaucoma. The expert supposed that one possible reason for the increased incidence of glaucoma in patients with refractive errors is intraocular pressure. This study was conducted to determine the relationship between refractive errors and intraocular pressure. In this case - control study 115 patients with refractive error as the case group and 115 clients who were matched for age، sex and other characteristics، and did not have refractive error were selected through the sampling as the control group. The non-contact tonometer method، without the use of anesthetic in eye and with the help of air pressure was used the measure and record the intraocular pressure by an opopetrist specialist. Data were collected in spss15 software and analyzed by using Chi Square، t test and one way Variance at the level of 0. 05. The results showed that mean IOP of right eye in the case group was higher (15. 75 ± 2. 28) than control group (15. 03 ± 2. 16) (P = 0. 015). The mean intraocular pressure of left eye also in the case group were higher (15. 37±2. 38) than the control group (14. 69±1. 99) (P=0. 02). Results showed that in the right eye and the left eye in patients with refractive error the intraocular pressure was higher than those without refractive error. However، the mean IOP showed no significant differences based on the type of refractive error. The results of this study support the hypothesis that the refractive errors are risk factors of intraocular pressure.