The aim of this study is to assess the change in intraocular pressure after a road trip, in eyes with different levels of filling with gas tamponade. Five rabbit eyes were subject to pars plana vitrectomy and gas tamponade (filling percentage: 25%, 50%, and 100% of nonexpansile SF6, 100% saline solution, and 100% room air). A sixth eye was injected with 0.35 cc of undiluted SF6 without vitrecto...

BACKGROUND To compare the intraocular pressure readings obtained with the iCare rebound tonometer and the 7CR non-contact tonometer with those measured by Goldmann applanation tonometry in treated glaucoma patients. DESIGN A prospective, cross-sectional study was conducted in a private tertiary glaucoma clinic. PARTICIPANTS OR SAMPLES One hundred nine (54 males : 55 females) patients includ...

AIMS This study examined the effects on intraocular pressure, pulse rate, and blood pressure of low dose intravenous sedation with propofol. METHODS Twenty adult patients who were scheduled to undergo cataract surgery were given a single intravenous bolus (0.98 (SEM 0.4) mg/kg) of propofol for sedation before administering the local anaesthetic for cataract surgery. A small intravenous dose o...

Topical administration of prostaglandin F2a (PGF2a) produced a reduction in intraocular pressure in eyes of rabbits, cats, and cynomolgus monkeys. In rabbit eyes at 5 or 6 hr, 50 ng, 100 ng, or 250 ng of PGF2a caused a significant intraocular pressure reduction with a small miotic effect. Treatment with 500 ng, 750 fig, or 1000 ng of PGF2a lowered intraocular pressure significantly in cat eyes ...

BACKGROUND The relationship between intraocular pressure and age is not fully understood. Intraocular pressure may increase or decrease with age. PURPOSE Study was planned to determine the effect of aging on intraocular pressure of an apparently healthy population of Karachi. SUBJECTS AND METHODS Depending upon age, 8036 subjects were divided into seven groups. All were examined according t...

OBJECTIVE To study the effects of sufentanil and fentanyl on intraocular pressure after easy and difficult intubations. METHODS From January 2006 to January 2008 there were included 120 patients undergoing general anesthesia at University Hospital Center (Mother Theresa) Service of Anesthesia and Intensive Care, Tirana, Albania. The patients were divided into 2 groups, 60 patients each receiv...

Introduction: The aim of present study was to assess the correlation between glucose and lipid biomarkers variations with biometric characteristics and intraocular pressure changes following Ramadan fasting. Methods: A total of 100 healthy fasting volunteers were enrolled in the study. Of them, 89 subjects completed the study with respect to inclusion and exclusion criteria. Right eye ocular ax...

BACKGROUND The aim of this study was to compare the efficacy and safety of micropulse and continuous wave diode transscleral cyclophotocoagulation in refractory glaucoma. DESIGN Randomized, comparative, exploratory study in a tertiary hospital setting. PARTICIPANTS Patients with refractory, end-stage glaucoma. METHODS Forty-eight patients were randomized to either treatment. The intraocul...

In rabbits the topical administration of sodium azide (NaNs) or sodium nitroprusside (SNP) increased intraocular pressure in a dose-response manner. These agents, which activate guanylate cyclase, elevated cyclic GMP in the aqueous humor. Systemic blood pressure and pulse were not altered. Tonographic outflow facility was unchanged, suggesting an increase in aqueous humor flow as the mechanism ...