Vestnik oftalmologii
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Vestnik oftalmologii · Jan 2006
Review[Current trends in the development of functional studies in ophthalmology].
The paper details the currently available psychophysical and objective diagnostic methods. Among the recently used improvements, there is enhancement of the capacities of a perimetric analysis, an objective control of fixations during multifocal electroretinography, confocal ophthalmoscopy of the retina, and its enhancement coherent optical tomography. Study of local visual activity, quantitative analysis of metamorphopsias, autofluorescence analysis of retinal pigment, and evoked visual multifocal potentials are regarded as innovations. Future developments of methods for functional studies of the organ of vision may follow several directions: improvement of available methods, development and application of new different methods, and estimation of the advantages of different studies.
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Vestnik oftalmologii · Mar 2003
Comparative Study[Role of spectral filters for refraction dynamics in computer users].
The influence of the spectral-filter (SF) spectacles (when used for an extended time period--for 4 years), produced on the eye refraction of computer users, was studied. The persons in the main and control groups (mean age was, respectively, 49.46 +/- 2.27 and 46.0 +/- 3.28 years, and mean refraction was, respectively, -0.71 +/- 0.42 and -0.88 +/- 0.5 diopters) used the computers on the daily basis for as long as 4 hours during 4 years. ⋯ As for the control group, a reliable increase of myopia by 0.25 +/- 0.06 diopters was noted in operators with myopia, and a reliable weakening of refraction (a growth in the level of hypermetropia) by 27 +/- 0.05 diopters was found in operators with hypermetropia and emmetropia. According to questionnaire results, 88.2% of computer operators, who used the SF spectacles, managed to preserve the initial improvement of comfort, while the comfort degree worsened in 11.8% of them.
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Vestnik oftalmologii · Nov 2001
[Role of ultrasonic B-scanning in differential diagnosis and prognosis of the course of optic neuritis].
The possibility of using ultrasonic scanning in differential diagnosis of optic neuritis (ON) and anterior ischemic neuropathy (AIN) and the prognostic significance of the results were evaluated. The thickness of retrobulbar part of the optic nerve directly behind the eye was measured by echographic B method in patients with ON and AIN. The thickness of the retrobulbar part of the involved and paired optic nerve was more than 0.7 mm in 90% patients with ON, which can be considered as an additional clinical sign of ON. ⋯ In patients with disseminated sclerosis ON is associated with less pronounced thickening of the retrobulbar part of the optic nerve than in idiopathic ON, which agrees with the pathogenesis and pathomorphology of disseminated sclerosis. The degree of optic nerve thickening in ON in patients with disseminated sclerosis is prognostically insignificant, while in idiopathic ON more than 2 mm asymmetry of the retrobulbar part of the involved and paired optic nerve is a sign predicting a long course of the disease and maybe incomplete recovery of vision. Thickening of the involved optic nerve by less than 1.7 mm is associated with a better prognosis as regards the time and completeness of vision restoration.