background: glaucoma is a progressive optic neuropathy and is one of the leading causes of blindness worldwide. different factors have been contributed in the pathogenesis of glaucoma including h. pylori infection. objective: to determine the levels of anti-h. pylori igg antibody in the aqueous humor of patients with pseudoexfoliation and primary open angle glaucoma, in comparison with age and ...

A high-pressure liquid chromatography instrument has been used to establish a method for the analyses of ascorbate concentration in aqueous humor. The method detects only the reduced form of ascorbate. The values obtained by this method are very similar to those of the colorimetric method. The ascorbate value in a group of random samples obtained from human glaucoma eyes varied between 3.5 to 3...

In clinical work, the loss of intraocular fluid caused by tonography (dV) is usually calculated according to the formula of Grant and Friedenwald. The validity of this formula has been tested by comparing the dV calculated from known factors in the formula with the dV measured directly on enucleated eyes. Our results show a good correlation between the two methods, especially when the rigidity ...

Epinephrine 2% drops were administered to one eye and a placebo to the fellow eye twice a day for 2 weeks in 18 normal human volunteers. The circadian rhythm of aqueous humor flow was measured by fluorophotometry. Epinephrine (compared with placebo) had no measurable effect on the rate of aqueous flow or the circadian rhythm of aqueous humor flow. These results suggest either that topical appli...

The applanation pneumatonograph combines pneumatic and electronic systems. It is used for measuring intraocular pressure, aqueous humour dynamics, and ocular pulsation. In the present study the PTG and the Goldmann tonometer have been used to measure the intraocular pressure in 40 normal and 40 glaucomatous eyes. It has been found that the results of the two instruments correlate well. The PTG ...

Thirteen human subjects scheduled for elective anterior segment eye surgery received hourly 2% voriconazole eye drops 4 hours presurgery. No side effects were reported. Significantly, the voriconazole concentration in the aqueous humor of the eye was similar to that reported for the 1% voriconazole solution, suggestive of concentration-independent absorption.

Zinc concentrations in aqueous humour and serum were determined by means of atomic absorption spectrophotometry in 11 patients with cataract. The zinc content of the aqueous humour was found to be considerably lower than the corresponding serum values. From this finding it is suggested that aqueous humour does not serve as a likely route of delivery of zinc to the cornea.

PURPOSE To test the hypothesis that an individual shows concordance of aqueous humor flow in the morning and at night in a prospective inpatient fluorophotometry study in healthy subjects. METHODS Flow was measured in each eye every hour between 8 AM and noon and every 2 hours between midnight and 6 AM. Morning and nighttime flows were analyzed for differences between eyes and for differences...

Identifying social gaffes is important for maintaining relationships. Older adults are less able than young to discriminate between socially appropriate and inappropriate behavior in video clips. One open question is how these social appropriateness ratings relate to potential age differences in the perception of what is actually funny or not. In the present study, young, middle-aged, and older...

This study tested a model of the development of incongruity-resolution and nonsense humor during adulthood. Subjects were 4,292 14- to 66-year-old Germans. Twenty jokes and cartoons representing structure-based humor categories of incongruity resolution and nonsense were rated for funniness and aversiveness. Humor structure preferences were also assessed with a direct comparison task. The resul...