Search Results
Results 301 - 350 of 1517
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Igwe S A - - 2003
Xylopia aethiopica, African guinea pepper, is an angiosperm belonging to the family Annonecae, and used mainly as spice and in traditional medicine. The ocular dynamics of bolus consumption of 300 mg total dose was undertaken on visually active volunteers with a view to finding its ocular effects or complications. Results ...
Lin Tai-Yuan David - - 2003
PURPOSE: Control of the transport of molecules into the nucleus represents a key regulatory mechanism for differentiation, transformation, and signal transduction. Permeabilization of the nuclear envelope by physical methods can have applications in gene therapy. Laser-induced pressure transients can produce temporary aqueous pores analogous to those produced by electroporation and ...
Satilmis Mücahit - - 2003
PURPOSE: To evaluate the correlation between progression rate of glaucomatous damage and retrobulbar blood flow in an institutional setting. DESIGN: Retrospective, observational case series. METHODS: Twenty open-angle glaucoma patients with at least five visual field examinations and progressive damage in at least one eye were included in the study. Mean ...
Distelhorst James S - - 2003
Glaucoma is the second most common cause of legal blindness in the United States. Open-angle glaucoma is an asymptomatic, progressive optic neuropathy characterized by enlarging optic disc cupping and visual field loss. Patients at increased risk for open-angle glaucoma include blacks older than 40 years, whites older than 65 years, ...
Hofmann Max - - 2003
The influence of pressure on laser-induced incandescence (LII) is investigated systematically in premixed, laminar sooting ethylene/air flames at 1-15 bar with wavelength-, laser fluence-, and time-resolved detection. In the investigated pressure range the LII signal decay rate is proportional to pressure. This observation is consistent with the prediction of heat-transfer ...
Babalola O E - - 2003
PURPOSE: Pigment dispersion syndrome (PDS) is a well-described entity with Krukenberg's spindle, heavy trabecular pigmentation and retroilluminating iris defects. We have observed a group of patients in mesoendemic onchocercal communities of Kaduna State, Nigeria, with significant amounts of free-floating melanin in the anterior chamber, normal angle pigmentation and absence of ...
Uhlig Constantin E - - 2003
PURPOSE: The aim of this study was to test the effectiveness of using a fibrin sealant as an aid to stabilize temporarily sutured keratoprostheses. METHODS: Ex vivo the corneas were removed from six porcine eyes, and an Eckardt prosthesis was sutured and additionally fixed with fibrin sealant. The outflow resistance ...
Kitagawa Kiyotaka - - 2003
BACKGROUND: Several ocular complications, including glaucoma and ocular hypertension, have been reported in patients with nevus of Ota. CASE: A 12-year-old boy with nevus of Ota on the left side of his face was referred for further examination of elevated intraocular pressure in his left eye. OBSERVATIONS: Intraocular pressure measured ...
Ben-Simon Guy J - - 2003
OBJECTIVE: To evaluate the short-term efficacy and safety of needle revision of failed filtering blebs augmented with subconjunctival injection of mitomycin C. PATIENTS AND METHODS: Needle revision of failed filtering blebs followed by subconjunctival injection of 10 to 20 microg of mitomycin C was performed in 41 eyes. Short-term results ...
True Cybil A - - 2003
Fasciculations are a common side effect of the use of succinylcholine for tracheal intubation. Many anesthesia care providers prefer to prevent them due to a possible association between fasciculations and increased intracranial and intraocular pressures. The purpose of this study was to compare the effectiveness of tubocurarine, rocuronium, and cisatracurium ...
Asha K N - - 2003
The extracts as well as piperolactum C, goniopedaline, 6beta-hydroxystigmasta-4,22-dien-3-one and a mixture of cis- and trans-4-hydroxymelleins obtained from Uvaria hamiltonii stem bark exhibited mild to moderate in vitro antibacterial activity. The results obtained were compared with a standard antibiotic, kanamycin. In a brine shrimp lethality bioassay the pet-ether, dichloromethane, methanol ...
Dane Senol - - 2003
To test whether there is a relationship between handedness and the intraocular pressure and there is a lateralization in the intraocular pressure, the intraocular pressures of the right- and left-eyes were compared in right- and left-handed students. The intraocular pressures were higher in the right-eye than in the left-eye in ...
Hille Konrad - - 2003
To report postsurgery angioedema resulting in malignant glaucoma. Interventional case report. Three hours after uncomplicated cataract surgery on the right eye, a 61-year-old woman developed angioedema with swelling of the parapharyngeal tissue. Visual acuity deteriorated, and tonometry revealed an intraocular pressure of 60 mm Hg, with shallow anterior chambers, in ...
Grotenhermen Franjo - - 2003
Delta(9)-Tetrahydrocannabinol (THC) is the main source of the pharmacological effects caused by the consumption of cannabis, both the marijuana-like action and the medicinal benefits of the plant. However, its acid metabolite THC-COOH, the non-psychotropic cannabidiol (CBD), several cannabinoid analogues and newly discovered modulators of the endogenous cannabinoid system are also ...
Kotikoski Hanna - - 2003
BACKGROUND: We previously reported that several nitric oxide (NO) donors, guanylate cyclase activators, and cyclic GMP lower intraocular pressure (IOP) in rabbits. MATERIAL/METHODS: This study evaluated a novel method for studying cGMP production in the iris-ciliary body after the administration of different NO donors and guanylate cyclase activators. Tissue samples ...
Pintor Jesús - - 2003
Adenine dinucleotides are present in many biological systems and may serve as physiological regulators of processes such as neurotransmitter release, vascular tone or corneal hydration. The presence of diadenosine polyphosphates was investigated in New Zealand White rabbit aqueous humor. Diadenosine tetraphosphate (Ap4A) and diadenosine pentaphosphate (Ap5A) were identified and quantified ...
Dörries Matthias - - 2003
The eruption of the volcano Krakatau in the Netherlands East Indies (Indonesia) in 1883 had worldwide impact. This was perceived in the three quite different types of global propagation that occurred after the eruption: a rapid pressure wave, noticeable only to measuring instruments, followed a few hours later by the ...
Hulsman Caroline A A - - 2002
OBJECTIVES: To assess the genetic risk of open-angle glaucoma (OAG) in individuals by calculating a family score (FS), which summarizes the information of all relatives including their disease status, age, sex, and degree of kinship and to examine the genetic contribution to OAG with and without an increased intraocular pressure. ...
Kiuchi Yoshiaki - - 2002
The purpose of our study is to evaluate the effect of a single drop of latanoprost on the intraocular pressure and blood-aqueous barrier permeability in 8 patients with uveitis. The degree of inflammation was determined by the intensity of aqueous flare measured with a laser flare cell meter every 2 ...
Georgopoulos M - - 2002
BACKGROUND: Episcleral application of mitomycin-C (MMC) during glaucoma filtration surgery hinders the post-operative wound healing. Diffusion through the sclera might result in a toxic effect on the ciliary body resulting in reduced aqueous humor production leading to post-operative hypotony. We developed an experimental model to investigate the influence of intraocular ...
Muck Alexander - - 2002
The photodegradation of the 1-nitropyrene (NPy) has been studied using conventional (Xe and medium pressure Hg lamps) and laser sources (XeCl excimer and Nd-YAG UV). Low energy monochromatic light sources were used to study the early stages of degradation (up to 50% conversion). The medium pressure Hg lamp was used ...
Boyce James F - - 2002
PURPOSE: To model the pressure relationship between an intraocular lens (IOL) and the capsular bag. SETTING: Department of Physics, Kings' College, London University, London, United Kingdom. METHODS: A mathematical model was made of the forces between the capsule and IOL showing that the pressure related to the local radius of ...
Hutter Joseph - - 2002
PURPOSE: Predict the persistence and expansion of intra-ocular tamponade gases used in retinal detachment surgery. Quantify factors that contribute to elevations in the intraocular pressure. METHODS: We developed a non-equilibrium physiological model of intraocular gas transfer in vitreoretinal surgery. The model was calibrated using published volumetric decay measurements for four ...
Koçer Ibrahim - - 2002
The effects of unilateral forced nostril breathing on the intraocular pressures of right and left eyes was studied in 24 male and 26 female right-handed adults. In men, the forced breathing through both the right and left nostrils significantly decreased the intraocular pressures of both right and left eyes. For ...
Németh János - - 2002
PURPOSE: Prospective examination of the influence of changes in heart rate, arterial blood pressure and intraocular pressure induced by short dynamic exercise on orbital blood-flow velocities, and comparison of the autoregulation response in the ophthalmic artery and the central retinal artery. METHODS: Twelve young healthy volunteers were involved in the ...
Boriani Giuseppe - - 2002
Morphology Discrimination (MD) is a rhythm discriminator based on QRS morphology analysis that can be combined with other discriminators like Stability, with or without Sinus Interval History (SIH) and Sudden Onset. Thirty-five patients implanted with a St. Jude Medical single chamber ICD were evaluated during exercise testing, during induced AF, ...
Ofri R - - 2002
The intraocular pressure and rate of tear production were measured in 18 addax antelopes (Addax nasomaculatus), four impalas (Aepyceros melampus), 11 wide-lipped rhinoceroses (Ceratotherium simum), 10 white-tailed wildebeests (Connochaetes gnou) and seven scimitar-horned oryxes (Oryx dammah). The animals were anaesthetised with an intramuscular injection of etorphine hydrochloride and acepromazine maleate, ...
Hellberg Mark R - - 2002
The structure-activity studies that led to the identification of travoprost, a highly selective and potent FP prostaglandin analog, and AL-6598, a DP prostaglandin analog, are detailed. In both series, the 1-alcohol analogs are very effective and are thought to be acting as prodrugs for the biologically active carboxylic acids. The ...
Bito Laszlo Z - - 2002
The long and arduous process that led to the development of ocular hypotensive prostaglandin derivatives over the past three decades has been reviewed several times. In this "postscript" to the second Survey of Ophthalmology supplement devoted to the ocular hypotensive effects of prostaglandin derivatives, only two aspects of this new ...
Dunlop Anthony A S - - 2002
A 78-year-old man with familial amyloidotic polyneuropathy type I (Met30), presented with rubeotic glaucoma 9 months following an uncomplicated vitrectomy for vitreous amyloidosis. There was retinal neovascularization and extensive retinal vascular closure. In the preceding 9 months, episodes of 'uveitis' and high intraocular pressure are thought to be due to ...
Lüke Christoph - - 2002
PURPOSE: To assess the intraocular pressure-lowering efficacy and the postoperative complication profile of viscocanalostomy versus trabeculectomy. PATIENTS AND METHODS: Sixty eyes of 60 patients with medically uncontrolled open-angle glaucoma were randomized either to the viscocanalostomy or to the trabeculectomy group of the trial. Viscocanalostomy was performed according to Stegmann's technique ...
Emerick Geoffrey T - - 2002
PURPOSE: To evaluate the efficacy and safety of tube fenestrations in eyes undergoing polyglactin suture-ligated Baerveldt Glaucoma Implant surgery. PATIENTS AND METHODS: The authors performed a retrospective nonrandomized comparative interventional study of consecutive cases of 111 eyes of 111 patients with refractory glaucoma who received polyglactin (Vicryl) suture-ligated Baerveldt 350 ...
Morgan Andrew J - - 2002
PURPOSE: The Dynamic Observing Tonometer (SmartLens, Ophthalmic Development Company AG, Zürich, Switzerland) is a diagnostic contact lens that allows continuous measurement of intraocular pressure, in addition to providing the investigator with a view of the posterior pole and anterior chamber angle. The purpose of this study was to determine the ...
Ficarra Anthony P - - 2002
BACKGROUND: Measurement of intraocular pressure by digital tension is a procedure that warrants study to determine if it could reliably yield pressure measurements for young children. METHODS: Sixty-two children (mean age, 3.8 years) served as subjects for the study. The examiner determined each child's digital tension in mmHg, classifying the ...
Sánchez-Galeana César A - - 2002
PURPOSE: To describe a complication resulting from the implantation of a posterior chamber intraocular lens in a phakic eye. DESIGN: Interventional case report. METHODS: We examined a 37-year-old woman with severe myopia who had implantation of a phakic posterior chamber intraocular lens. RESULTS: The patient developed pigmentary glaucoma with refractory ...
Kamlesh - - 2002
PURPOSE: To evaluate the effect of 10 mm inferior oblique recession in horizontal strabismus with V pattern and primary inferior oblique overaction. METHODS: Ten patients of V esotropia and exotropia with primary inferior oblique overaction underwent 10 mm inferior oblique recession by the methods described by Park and Stallard. Pre- ...
Ceballos Elizenda M - - 2002
PURPOSE: To evaluate the outcome of trabeculectomy with antiproliferative agents in patients with uveitic glaucoma METHODS: A retrospective chart review of 44 eyes of 44 patients with uveitic glaucoma who underwent trabeculectomy with mitomycin C or 5-fluorouracil. The authors defined complete success as an intraocular pressure of 21 mm Hg ...
Kim Jong Hyun - - 2002
We investigated the effect of topical betaxolol on impaired choroidal blood flow (CBF) induced by endothelin-1 (ET-1) injection into the vitreous of albino rabbits. Betaxolol (n = 7) or balanced salt solution (BSS) (n = 6) was instilled in the right eyes before and 12 hrs after the intravitreal injection ...
Dietlein Thomas S - - 2002
PURPOSE: Epidemiologic studies have shown that various lifestyle characteristics are statistically associated with the chronic open-angle glaucomas. This study was designed to investigate the influence of individual factors on the light-microscopic morphology of the trabecular meshwork in open-angle glaucomas. METHODS: Quantitative computer-assisted topographic analysis of the trabecular meshwork was performed ...
Ritch Robert - - 2002
PURPOSE: To assess the relation between the intraocular pressure-lowering efficacy of latanoprost 0.005% and the area of the ciliary body face exposed to the anterior chamber as assessed by ultrasound biomicroscopy. PATIENTS AND METHODS: Untreated, latanoprost-naive patients with ocular hypertension or open-angle glaucoma were enrolled in this prospective clinical trial. ...
O'Connor Daniel J - - 2002
PURPOSE: To determine the additive intraocular pressure reduction of various topical glaucoma agents used adjunctively with latanoprost. DESIGN: Retrospective interventional case series. METHODS: Retrospective evaluation of 73 eyes of 73 patients with glaucoma and inadequate intraocular pressure control on latanoprost alone. Each patient received adjunctive treatment with an additional glaucoma ...
Li Li - - 2002
PURPOSE: To evaluate the safety and accuracy of a manual microkeratome and an artificial anterior chamber used at high intrachamber pressure to harvest corneal lenticules for lamellar keratoplasty. SETTING: Department of Ophthalmology, University of California, Irvine, California, USA. METHODS: Forty-seven human eye-bank corneoscleral rims were mounted on an artificial anterior ...
Price Francis W FW - - 2002
A patient with juvenile rheumatoid arthritis and chronic iritis is reported with intraocular pressure near 30 mm Hg and previous episodes of intraocular pressure as high as 50 mm Hg despite maximally tolerated medical therapy. Because of the potential risk involved with a full-thickness filtration procedure, it was decided that ...
Kampik Anselm - - 2002
PURPOSE: To compare the effect of treatment with latanoprost or brimonidine on intraocular pressure in patients with glaucoma or ocular hypertension and intraocular pressure inadequately controlled by monotherapy or dual therapy. PATIENTS AND METHODS: Three hundred seventy-nine patients with primary open-angle glaucoma or ocular hypertension were recruited for this 6-month ...
Barth Johannes A C - - 2002
The strain Burkholderia cepacia G4 aerobically mineralized trichloroethene (TCE) to CO(2) over a time period of approximately 20 h. Three biodegradation experiments were conducted with different bacterial optical densities at 540 nm (OD(540)s) in order to test whether isotope fractionation was consistent. The resulting TCE degradation was 93, 83.8, and ...
Neudorfer M - - 2002
An 84-year-old woman with unstable angina pectoris was treated with subcutaneous enoxaparine (Clexane) for several days before presenting with severe pain and decreased vision in her left eye. The intraocular pressure was 70 mmHg, and fundus examination showed a pigmented choroidal lesion and associated choroidal and retinal detachment. Ultrasonography was ...
Katz L Jay - - 2002
PURPOSE: To compare the efficacy and safety of brimonidine-Purite (Alphagan; Allergan, Irvine, CA) 0.15% and 0.2% three times daily with brimonidine (Alphagan) 0.2% three times daily in patients with glaucoma or ocular hypertension. PATIENTS AND METHODS: In this 12-month, randomized, multicenter, double-masked, parallel-group study, patients were randomly assigned to receive ...
Hamilton David Rex - - 2002
To report the ocular manifestations and clinical course of eyes developing interface fluid after laser in situ keratomileusis (LASIK) surgery from a steroid-induced rise in intraocular pressure. Retrospective, noncomparative interventional case series. We examined six eyes of four patients who had diffuse lamellar keratitis develop after uneventful myopic LASIK surgery ...
Polk J D - - 2002
The use of gas media in ophthalmologic procedures is relatively commonplace. Scleral buckle and pneumatic retinopexy procedures using air-gas mediums are a widely accepted treatment for retinal detachment. We present a patient who had a scleral buckle with pneumatic retinopexy performed and subsequently flew in a commercial airliner 2 wk ...
Puras Gustavo - - 2002
BACKGROUND: We previously reported that topical natural ergot alkaloids ergocristine, alpha-ergocryptine and ergocornine dose-dependently reduce intraocular pressure in ocular normotensive rabbits, most likely by decreasing aqueous humor inflow. In the present study, the effects of these compounds on intraocular pressure and aqueous humor dynamics in a rabbit model for ocular ...
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