abstract：:Topcon Tokyo manufactured the first series of SL-45 in 1980 and a second in 1982/83, which were completed in Bonn with all technical improvements developed so far. In 1987, the SL-45B was manufactured which included all previously added improvements. To compare both camera types, we carried out a test with 10 voluntee...

journal_title：Ophthalmic research

authors： Laser H,Berndt W,Leyendecker M,Kojima M,Hockwin O,Cheyne A

更新日期：1990-01-01 00:00:00

abstract：:Cataractous lens images taken with different camera types for retroillumination photography were compared. Images taken by conventional photo slitlamp and fundus cameras were not suitable for image analysis. Retroillumination photography with a conventional fundus camera with additional polarizing filters seemed to be...

journal_title：Ophthalmic research

authors： Sakamoto Y,Rankov G,Sasaki K

更新日期：1990-01-01 00:00:00

abstract：:The activities of sialyl-, fucosyl- and galactosyltransferase were measured in membrane preparations from bovine eyes. Radioactive sugars from CMP-N-neuraminic acid, GDP-fucose and UDP-galactose were incorporated into the endogenous and exogenous acceptors. The enzymatic activities of all three glycosyltransferases we...

journal_title：Ophthalmic research

authors： Unoki K,Uehara F,Muramatsu T

更新日期：1990-01-01 00:00:00

abstract：:The tear levels of cholesterol of 17 patients with chronic blepharitis and 17 healthy subjects were determined by the photometric method. The mean cholesterol level of the patients was determined to be 56.1 +/- 8.9 (SEM) mg/dl. No statistically significant difference between the tear cholesterol levels of the two grou...

journal_title：Ophthalmic research

authors： Saatçi AO,Irkeç M,Unlü N

更新日期：1990-01-01 00:00:00

abstract：:The effects of optical defocusing with convex lenses on the amplitudes of pattern reversal visual-evoked response (PVER) were investigated. With the large check size and high-contrast pattern, PVER amplitudes showed a linear decrease in response to initial defocusing up to +5 to +6 dptr. As the degree of defocus incre...

journal_title：Ophthalmic research

authors： Katsumi O,Hirose T,Sakaue H,Mehta M,Rosenstein RB

更新日期：1990-01-01 00:00:00

abstract：:The seasonal variation in the incidence of retinal detachment over the period from 1981 to 1987 inclusive was investigated. Highly significant associations were observed between this variation and both sunshine and temperature. Hence, it is suggested that heat or cold may be important additional factors in the develop...

journal_title：Ophthalmic research

authors： Al Samarrai AR

更新日期：1990-01-01 00:00:00

abstract：:We measured prostaglandin E2 (PGE2) and prostacyclin levels in the vitreous bodies of 5 eyes of patients with diabetic retinopathy complicated by rhegmatogenous retinal detachment (RRD) and compared them with the corresponding levels in 9 nondiabetic eyes with the same condition as well as with 10 control eyes of dece...

journal_title：Ophthalmic research

authors： Naveh N,Belkin M,Ben-Chaim O,Weissman C,Treister G

更新日期：1990-01-01 00:00:00

abstract：:The effect of large intake of dietary ascorbic acid on heat-induced eye lens protein damage has been studied. Male guinea pigs of the Hartley strain were used. Ascorbic acid was administered to the experimental animals in the drinking water. The mean daily ascorbic acid intakes for the control and experimental animals...

journal_title：Ophthalmic research

authors： Tsao CS,Xu LF,Young M

更新日期：1990-01-01 00:00:00

abstract：:Cellular immune responses in retinal autoimmunity have scarcely been studied in rabbits. An effective isolation of rabbit peripheral blood lymphocytes is difficult to achieve and requires specific conditions. This hampers especially the assay of antigen-induced lymphocyte transformation. We have improved the lymphocyt...

journal_title：Ophthalmic research

authors： Broekhuyse RM,Van Vugt AH

更新日期：1989-01-01 00:00:00

abstract：:Statistically significant differences were found to exist in the frequencies of abnormal cell types in cultured lenses depending on the composition of the nutrient media (Eagle's and Dulbecco's modified essential medium with fetal calf serum FCS) they were cultured on. Abnormal cell growth (epithelioid, fibroblast-lik...

journal_title：Ophthalmic research

authors： Veroman S,Viikmaa M

更新日期：1989-01-01 00:00:00

abstract：:This study was undertaken to characterize the mechanism of ocular irritation to YAG laser capsulotomy in rabbits. The blocking agents were administered intravitreally. (D-Arg1,D-Pro2,D-Trp7,9)-SP, a substance P antagonist, tended to reduce miosis but had no effect on intraocular pressure (IOP). It had less effect on m...

journal_title：Ophthalmic research

authors： Oksala O,Stjernschantz J,von Dickhoff K

更新日期：1989-01-01 00:00:00

abstract：:Cellular events in the rat conjunctiva were studied at 1, 6 and 24 h following the topical application of leukotriene B4. A significant increase was noted in the number of eosinophils (p less than 0.01) and neutrophils (p less than 0.05) at 1 h and only in eosinophils at 6 h after leukotriene B4 application at the 2-m...

journal_title：Ophthalmic research

authors： Trocmé SD,Gilbert CM,Allansmith MR,Bloch KJ,Abelson MB

更新日期：1989-01-01 00:00:00

abstract：:The crystalline lens capsules of eye bank eyes, intraocular lens (IOL)-inserted eyes and those of monkey and rabbit eyes were observed in vivo and/or in vitro through a specular microscope or Scheimpflug slit images in combination with new image-processing techniques and scanning electron microscopy. Shagreen patterns...

journal_title：Ophthalmic research

authors： Sasaki K,Kojima M,Hara T

更新日期：1988-01-01 00:00:00

abstract：:Epinephrine (1, 3 and 10 micrograms/kg) was found to increase retinal and choroidal blood flow (22, 49 and 67%) when it was administered intravenously. The increase in retinal and choroidal blood flow coincided well with the increase in systemic blood pressure (44, 65 and 96%, respectively). When epinephrine (2%) was ...

journal_title：Ophthalmic research

authors： Chiou GC,Girgis Z,Chiou FY

更新日期：1988-01-01 00:00:00

abstract：:Exposure of mice to hyperbaric oxygen leads to an inhibition of the mitotic activity in the germinative epithelium of the lens. This is followed by an eventual development of cataracts. Cataracts have also been observed in human beings treated with hyperbaric oxygen for different afflictions. The lens damage and catar...

journal_title：Ophthalmic research

authors： Varma SD,Richards RD

更新日期：1988-01-01 00:00:00

abstract：:Rat lenses with experimentally induced cataract (either by naphthalene or by streptozotocin) were analyzed biochemically. Both noxae had some effects in common. Water-soluble protein and aldose reductase activity decreased, and glucose-6-phosphate dehydrogenase, phosphofructokinase and glutathione reductase activity i...

journal_title：Ophthalmic research

authors： Korte I,Hockwin O,Bours J,Wegener A

更新日期：1988-01-01 00:00:00

abstract：:The vibrating probe detects and measures currents around cells and organs. With its use, it is possible to demonstrate strong outward potassium currents at the equator of the lens and strong inward sodium currents at the optical poles. The addition of microelectrodes to the system permits one to define the nature of t...

journal_title：Ophthalmic research

authors： Patterson JW

更新日期：1988-01-01 00:00:00

abstract：:Autofluorescence and transmission values of the lens for blue-green light were determined at two locations with the use of identical fluorophotometers: in Coimbra, Portugal, in 44 healthy controls, 15 haemodialysis and 11 renal failure patients, and in Leiden, The Netherlands, in 57 healthy controls, 23 haemodialysis ...

journal_title：Ophthalmic research

authors： van Wirdum E,Mota MC,van Best JA,Leite E,Kappelhof JP,Faria de Abreu JR,Paul LC,Freitas Martins J,Oosterhuis JA,Marques A

更新日期：1988-01-01 00:00:00

abstract：:To investigate the binding of peanut-agglutinin (PNA) on porcine corneal tissue, several methods of tissue processing were used. In cryostat sections of postmortem tissue, PNA labeling of epithelial cell membranes was detected. In the stroma, a fibrillar structure parallel to the corneal surface was found. The anterio...

journal_title：Ophthalmic research

authors： Vogelberg K,Böhnke M,von Domarus D

更新日期：1988-01-01 00:00:00

abstract：:Vitamin E (d-alpha-tocopherol) and aspirin were evaluated for their effects on the phase separation temperature, Tc, of calf lens cytoplasm. Vitamin E and aspirin were added to nuclear homogenate and the change in Tc was measured. Aspirin had no measurable effect on Tc. Vitamin E lowered Tc at a rate of -22 degrees C ...

journal_title：Ophthalmic research

authors： Eccarius S,Clark JI

更新日期：1987-01-01 00:00:00

abstract：:L-Timolol (0.4 mg/kg) reduced significantly retinal blood flow (17%), systemic blood pressure (18-20%) and heart rate (28%) in the rabbit. D-Timolol (4.0 mg/kg) increased retinal blood flow slightly (9%) and did not significantly affect systemic blood pressure or heart rate. Since D-timolol is effective in reducing in...

journal_title：Ophthalmic research

authors： Yan HY,Chiou GC

更新日期：1987-01-01 00:00:00

abstract：:The antioxidants sodium benzoate and 2,3-dihydroxybenzoic acid reduced the inflammatory response in experimental phacoanaphylactic endophthalmitis. The 2,3-dihydroxybenzoic acid was by far the more effective antiphlogistic agent. The molecular mechanisms that may have contributed to the observed difference in antiphlo...

journal_title：Ophthalmic research

authors： Marak GE Jr,Rao NA,Sevanian A,Zdravkovich V,Till GO,Ward PA

更新日期：1987-01-01 00:00:00

abstract：:Correlation proton nuclear magnetic resonance spectroscopy was performed on light- and dark-adapted rabbit retinas to elucidate real-time hexose monophosphate shunt (HMPS) activity. Light significantly stimulated retinal HMPS initially, which consumed 17% more glucose than that in dark-adapted retinas. The glucose con...

journal_title：Ophthalmic research

authors： Aguiar E,Cheng HM,Lam DM

更新日期：1987-01-01 00:00:00

abstract：:Chloroquine retinopathy was produced experimentally in the eye of the albino corydoras (one of the tropical fish) by daily administration of chloroquine (0.1 mg per os). The enucleated eyes were examined from the 14th day to 3 months after the beginning of drug administration under light and electron microscopy. The f...

journal_title：Ophthalmic research

authors： Matsumura M,Ohkuma M,Tsukahara I

更新日期：1986-01-01 00:00:00

abstract：:The effect of topical neutral formaldehyde on the blood-aqueous barrier of the rat was studied. Thirty minutes after irritation, the protein concentration of the aqueous humour had increased from the control value of 1.95 +/- 0.25 to 2.95 +/- 0.45 mg/ml (p less than 0.05). Extravasation of Evans blue dye from the iris...

journal_title：Ophthalmic research

authors： Krootila K,Uusitalo H,Lehtosalo JI,Palkama A

更新日期：1986-01-01 00:00:00

abstract：:The turnover and migration of synthesized glycoproteins in the cultured retinal pigment epithelium have been studied. Quantitative study indicated that half-time of 3H-fucosylglycoproteins was 11.6 days. Autoradiography was performed several times after incubation of 3H-fucose. Retinal pigment epithelium constantly sy...

journal_title：Ophthalmic research

authors： Entani S,Yoshimura N,Chihara E,Tsukahara I

更新日期：1986-01-01 00:00:00

abstract：:Although it is essential that intraocular pressure (IOP) be reduced in glaucoma treatment, it is also vitally important to provide sufficient blood flow to eye tissues so that healthy visual field is maintained. It is possible for an agent to reduce IOP and blood supply to the eye. In that case, glaucoma appears to be...

journal_title：Ophthalmic research

authors： Chiou GC,Yan HY

更新日期：1986-01-01 00:00:00

abstract：:The high-voltage electron microscope (HVEM) permits examination of sections much thicker (up to 1 micron) than those usually used in transmission electron microscopy, which are approximately 70 nm in thickness. Two examples of the utility of the HVEM in research on the ultrastructure of the retinal pigment epithelium ...

journal_title：Ophthalmic research

authors： Korte GE,Heriot W,Pollack A

更新日期：1986-01-01 00:00:00

abstract：:Two out of three normal eyes tested with frequent instillation of 30 microliters of drops of 0.5% bupranolol, a beta 1 + beta 2 blocking drug with some intrinsic sympathomimetic and local anesthetic activity, showed a miotic effect of the order of a 25% reduction of pupil area, as estimated by an open-loop iris-videor...

journal_title：Ophthalmic research

authors： Tsukahara S,Sasaki T,Yamabayashi S,Shimizu Y

更新日期：1986-01-01 00:00:00

abstract：:The pathology of rainbow trout lenses incubated in various media and at various temperatures was examined by electron microscopy. After incubation at 0 degrees C for 5 h, no changes were observed in transparency and cytology. Irreversible warm cataract occurred at 37 degrees C, which corresponds to the body temperatur...

journal_title：Ophthalmic research

authors： Uga S,Ishikawa S,Hikida M,Iwata S

更新日期：1986-01-01 00:00:00

abstract：:We studied lens opacification of rabbit lenses in culture. Opacification was produced by maintaining rabbit lenses in medium containing calcium concentrations as high as 10 mmol/l and the opacity was measured using LASER spectroscopy. Increasing calcium caused significant opacification in lens cortex while the transpa...

journal_title：Ophthalmic research

authors： Clark JI,Danford ME

更新日期：1985-01-01 00:00:00

abstract：:HY-1 genotype chick lenses display epithelial hyperplasia and associated lens opacities. Membrane proteins from HY-1 and normal chick lenses were separated by isoelectric focusing, and 45Ca2+ binding capacities were determined. Markedly higher (congruent to 900-fold) binding of 45Ca2+ was observed in high molecular we...

journal_title：Ophthalmic research

authors： Odeigah PG,Patmore L

更新日期：1985-01-01 00:00:00

abstract：:The component oxygen fluxes that constitute a single recording of corneal oxygen uptake when a polarographic oxygen sensor (POS) is placed in contact with the cornea were determined in the in vivo rabbit eye by removing the epithelium and injecting an air bubble into the anterior chamber. The relative contribution of ...

journal_title：Ophthalmic research

authors： Holden BA,Sulonen J,Vannas A,Sweeney DF,Efron N

更新日期：1985-01-01 00:00:00

abstract：:The influence of nonselective and selective alpha-adrenergic agonists on intraocular pressure (IOP) was studied in isolated arterially perfused rabbit eyes. Drugs were given intra-arterially or topically. With either route of administration, no initial hypertensive phase was observed after l-epinephrine, l-norepinephr...

journal_title：Ophthalmic research

authors： van Pinxteren PC

更新日期：1985-01-01 00:00:00

abstract：:Dragomirescu et al. [1983] described a 2-chamber flow system for the incubation of lenses with an inserted photometer to measure changes in lens transparency. Mester et al. [1984] applied the method to simulate conditions occurring during vitrectomy, which occasionally leads to reversible lens opacification. Using Sch...

journal_title：Ophthalmic research

authors： Hockwin O,Dragomirescu V,Schwarz B

更新日期：1985-01-01 00:00:00

abstract：:Indirect measurement in vivo of nuclear color of 64 cataractous eyes was made using a method of image analysis of photographed lenses developed by the authors. The grade of yellow of lens color was characterized by its dominant wavelength and excitation purity in the CIE chromaticity diagram. The differences were smal...

journal_title：Ophthalmic research

authors： Sasaki K,Hiiragi M,Sakamoto Y,Shibata T

更新日期：1985-01-01 00:00:00

abstract：:Extracellular recordings were performed on electrophysiologically identified achromatic neurons of the photosensitive pineal organ of the frog. The effects of iontophoretically applied aspartate and glutamate as well as one aspartate antagonist (D-alpha-aminoadipate) were observed on spontaneous activity and light-evo...

journal_title：Ophthalmic research

authors： Meissl H,George SR

更新日期：1984-01-01 00:00:00

abstract：:Energy-dispersive X-ray analysis was used to obtain distribution profiles of Na, K, Cl, P and S in rapidly frozen-dried bulk specimens, and in cryosections of the normal rat lens. Na and Cl are highly concentrated in the capsule, and K and P, in the epithelial cells. Profiles of the entire radius of a lens show relati...

journal_title：Ophthalmic research

authors： Harding CV,Susan S,Bobrowski W

更新日期：1984-01-01 00:00:00

abstract：:Modulation sensitivity functions ( MSFs ) of retinal ganglion cells of the pigeon were determined by recording action potentials from their end branching in the optic tectum as response indicator. The inverse Fourier transformation of a MSF is taken to represent the receptive field sensitivity function approximating t...

journal_title：Ophthalmic research

authors： Pak MA

更新日期：1984-01-01 00:00:00

abstract：:The pineal organ of the pike is a functional photoreceptive organ in which a multiplicity of the cells of the receptor line (CRL i.e. typical and modified photoreceptors) was demonstrated. The CRL appeared to be (i) regionally distributed, (ii) photosensitive, and (iii) responsible for the storage of various indoles (...

journal_title：Ophthalmic research

authors： Falcón J

更新日期：1984-01-01 00:00:00