نتایج جستجو برای: iop
تعداد نتایج: 7489 فیلتر نتایج به سال:
ABSTRACT The prevention of intraocular presure (IOP) has an outstanding effect upon successful ophtalmic surgery. Some stages of induction of anesthesia, like laryngoscopy and endotracheal intubation, cause the IOP increase which has dangreous consequences in open eye injuries. The purpouse of this study is the comparison of IOP changes during the induction of anesthesia using thiopental and p...
Introduction: Intraocular pressure (IOP) is determined by three factors: the rate of aqueous humor production by the ciliary’s body, the resistances to aqueous out flow across the trabecular meshwork and the level of episcleral vessel pressure. IOP varies with a number of factors, including: age, sex, race, systemic disease and diurnal variation. The purpose of this study is measurement of IO...
هدف: تعیین تفاوت فشار داخل چشمی (IOP) صبحگاهی و عصرگاهی در جمعیت عمومی ساکن شهر یزد. روش پژوهش: مطالعه بر روی 800 چشم از 400 فرد 20 تا 80 ساله انجام شد که با نمونهگیری تصادفی خوشهای از افراد ساکن شهر یزد در سال 84-1383 انتخاب شدند. IOP به وسیله تونومتر اپلنیشن گلدمن بین ساعت 9 -8 صبح و 9-8 عصر اندازهگیری گردید و تفاوت این دو، تغییر روزانه IOP در نظر گرفته شد. یافتهها: میانگین IOP صبحگ...
Introduction: This study aimed to investigate the diurnal intraocular pressure fluctuations under dehydration conditions and the relationship between the intraocular pressure fluctuations and blood pressure. Methods: The intraocular pressures (IOP), body weights, as well as systolic and diastolic blood pressures (SBP, DBP) of 36 fasting healthy volunteers were recorded at 8:00 a.m. and 5:00 p.m...
Background & Aims: Pseudoexfoliation syndrome (PXS) is a complex disorder which causes an increase in intraocular pressure (IOP). This study was conducted in order to compare IOP of both eyes of patients with unilateral PXS. Methods: In a cross-sectional study from January 2011 to June 2012, 79 patients with unilateral PXS were studied. The patients were examined first with constricted, and the...
purpose: to compare intraocular pressure (iop) readings measured by the ocular response analyzer (ora) with those measured by the goldmann applanation tonometer (gat) in keratoconic eyes following penetrating keratoplasty (pkp) and to evaluate the influence of anatomical and biomechanical properties of the grafts on iop measurements. methods: this cross-sectional study was conducted on 45 kerat...
Background: The aim of this study was to provide data, on the distribution or intraocular pressure (IOP) in Tehran population. Materials and Methods: Through a population-based, cross-sectional study, a total of 4565 Tehran citizens were studied in the Tehran Eye Study. The findings of the participants (n=3834) 10 years and older free of glaucoma diagnosis or suspicion who had undergone applana...
Background: To evaluate the agreement in intraocular pressure (IOP) measurements by Ocular Response Analyzer (ORA) and Tono-Pen XL (TXL) with the Goldmann Applanation Tonometer (GAT) and to examine corneal biomechanical properties in aphakic glaucoma patients with a central corneal thickness (CCT) >600 µ. Methods: Thirty-six eyes of aphakic glaucoma patients (group 1) and 40 eyes of normal chil...
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