Search results for "Pressure"

2015

Purpose This paper describes the study design, methodology, cohort profile and self-reported diseases in the ophthalmological branch of the Gutenberg Health Study (GHS). Methods The GHS is an ongoing, prospective, interdisciplinary, single-center, population-based cohort study in Germany. The main goals of the ophthalmological section are to assess the prevalence and incidence of ocular diseases and to explore risk factors, genetic determinants and associations with systemic diseases and conditions. The eye examination at baseline included a medical history, self-reported eye diseases, visual acuity, refractive errors, intraocular pressure, visual field, pachymetry, keratometry, fundus phot…

Reliability of iCare ic100 Rebound Tonometry and Agreement With Goldmann Applanation Tonometry in Healthy and Post-myopic LASIK Patients.

2021

Rebound tonometry offers excellent reliability for obtaining intraocular pressure (IOP) measurements in healthy and post-myopic laser-assisted in situ keratomileusis (LASIK) patients regardless of corneal parameters and axial length and regardless of the instillation of ocular topical anesthesia.The purpose of this study was to assess the reliability of rebound tonometry, its agreement with Goldmann applanation tonometry (GAT) and its concordance after topical anesthesia in a group of nonoperated healthy patients and a group of post-myopic LASIK patients.Fifty-four patients were included in this prospective observational, case-control study. Patients were divided into 2 groups: control (n=3…

Consequences of dietary omega-3 polyunsaturated fatty acid deficiency on retinal function and intraocular pressure in the rat

2009

Purpose Omega-3 polyunsaturated fatty acids (ω3) are key components in nervous structures but their dietary intakes in the overall population are often below nutritional requirements. A chronic deficiency in ω3 is recognized to be associated with functional impairment of the retina. At the opposite, ω3 supplementation is associated with a reduced risk for AMD. The consequences of ω3 deficiency on other eye structures than the retina, such as ciliary bodies, are scarce. The purpose of our study was to compare the response of the retina and ciliary bodies to dietary ω3 deficiency in terms of fatty acid profile and eye functionality. Methods Two successive generations of Lewis rats (G1 and G2)…

Fluocinolone acetonide vitreous insert for chronic diabetic macular oedema: a systematic review with meta-analysis of real-world experience

2021

AbstractWe conducted a meta-analysis of real-world studies on the 0.19 mg Fluocinolone Acetonide (FAc) intravitreal implant for chronic diabetic macular oedema (DMO), comparing these findings with the Fluocinolone Acetonide for Diabetic Macular Edema (FAME) study. The primary outcome was mean change of best corrected visual acuity (BCVA) at 24 months. Secondary outcomes were 36-month mean BCVA, mean central macular thickness (CMT) change, rates of eyes receiving supplementary intravitreal therapy, cataract surgery, intraocular pressure (IOP)-lowering drops and glaucoma surgery. Mean differences (MDs) with 95% confidence intervals (CIs) were calculated. Nine real-world studies were included.…

Autoimmunity and Glaucoma

2008

Elevated intraocular pressure does not explain glaucoma in all patients, but there is information that autoimmune mechanisms may be involved in this disorder. This review attempts to reveal the findings about specific changes in autoantibody profiles in glaucoma patients and their possible role in glaucoma. Considering that these changes in natural autoimmunity can be found consistently among different study populations, it might be a promising new tool for glaucoma detection.

Prävention des früh-postoperativen IOD-Anstiegs nach Phakoemulsifikation

2001

Purpose. To compare the ocular hypotensive effect of different antiglaucomatous eye drops. Patients and methods. This double-blind, randomized study included 119 eyes of 119 patients without other ocular pathology undergoing standardized (one surgeon, Healon) small incision cataract surgery with foldable intraocular lens implantation.The patients were assigned to one of five groups: group 1:0.25% timolol in Gelrite (extended efficacy, n=23); group 2: 2% dorzolamide (n=24); group 3: combination of 0.5% timolol plus 2% dorzolamide (n=22); group 4: brimonidine (n=26); group 5: gentamicin (control, n=24). Intraocular pressure (IOP) was measured preoperatively and at 3±1,6±1,9±1,24±3, and 48±3 h…

Argon laser suture lysis following glaucoma filtering surgery – A short introduction to the procedure

2010

Abstract Background Trabeculectomy is the most commonly performed glaucoma filtering surgery. The success of the outcome of an operation to reduce the intraocular pressure (IOP) is dependent on postoperative wound modulation by antimetabolite therapy and by flow regulation of the filtering bleb, which can be achieved by argon laser suture lysis. Methods and case report Postoperative IOP controls, examination of bleb formation and bleb massage can lead to the decision to perform up to four argon laser suture lyses in order to reduce IOP and enhance aqueous humor flow and bleb formation. The procedure is described here in a case report. Conclusion After glaucoma filtering surgery, argon laser…

Current Status of Epibulbar Anti-glaucoma Drainage Devices in Glaucoma Surgery

2012

SUMMARY Background: The term “glaucoma” covers a hetero geneous group of progressive optic neuropathies that are accompanied by characteristic visual-field defects. Primary open-angle glaucoma, the most common type, progresses insidiously and causes blindness if untreated. All current forms of treatment aim at lowering the intraocular pressure (IOP) in patients whose IOP is elevated. The implantation of anti-glaucoma drainage systems is one of the available options for surgical treatment. Methods: This review is based on pertinent literature retrieved by a selective search, including glaucoma treatment guidelines from Germany and abroad. Results: A paradigm shift is currently underway regar…

Dietary polyunsaturated fatty acids, intraocular pressure, and glaucoma

2014

Abstract Glaucoma is a progressive optic neuropathy and is the second leading cause of blindness worldwide. Estimations predict that nearly 80 million people will be affected by the disease in 2020. Increased intraocular pressure (IOP) has been recognized as a major risk factor for developing glaucoma. Although IOP-lowering agents have been shown to be effective for decreasing the progression of glaucoma, extensive research has been done to identify modifiable lifestyle factors involved in the pathogenesis of this disease. Among these factors, dietary lipids and particularly dietary polyunsaturated fatty acids (PUFAs) represent a promising approach. The aim of this chapter is to summarize t…

Latanoprost-induced iris darkening: a morphometric study of human peripheral iridectomies.

2003

Abstract Purpose. This microscopic study was undertaken to compare the melanocytes of peripheral iridectomy specimens from two eyes that had latanoprost-induced iris darkening (LIID) with iridectomies taken from the fellow untreated eyes. Methods. The two patients in this study were the ones who underwent LIID in the latanoprost treated eye from a series of 17 patients requiring bilateral trabeculectomy. The first trabeculectomy procedure provided a control peripheral iridectomy for each patient, whereas the second eye was treated with once daily 50 μg ml−1 latanoprost drops for 6 months. The four peripheral iridectomy specimens from the two LIID patients were subjected to quantitative morp…