0000000000329872

AUTHOR

M. Ozolinsh

showing 4 related works from this author

Visual acuity and color discrimination in patients with cataracts.

2020

Color vision tests can give information about pathological changes in eye structures. The purpose of our research was to study the color vision sensitivity and visual acuity changes before and after cataract surgery. We used a saturated Farnsworth D15 color vision arrangement test to check color sensitivity changes in confusion line directions. The test is easily perceptible (essential to eldery patients), and it is possible to check color sensitivity changes in tritan, protan, and deutan confusion line directions. The results were analyzed in several ways: by summing the color differences between adjacent caps according to Bowman and averaging the color difference vectors according to Ving…

MaleVisual acuitygenetic structuresColor visionmedicine.medical_treatmentVisual Acuity01 natural sciencesColor discriminationCataract010309 opticsOpticsCataracts0103 physical sciencesmedicineHumansIn patientChromatic scaleLeast-Squares AnalysisMathematicsAgedColor differencebusiness.industryCataract surgerymedicine.diseaseeye diseasesAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsOptometryRegression AnalysisFemalesense organsComputer Vision and Pattern Recognitionmedicine.symptombusinessColor PerceptionJournal of the Optical Society of America. A, Optics, image science, and vision
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The Effect of the Range of a Modulating Phase Mask on the Retrieval of a Complex Object from Intensity Measurements

2021

The authors have been supported by the postdoctoral project (1.1.1.2/16/I/001, 1.1.1.2/VIAA/1/16/199), the CAMART2 project (grant agreement ID 739508), the Latvian Investment and Development Agency (LIDA) project (KC-PI-2017/105), and the grant for the Latvian State Emeritus Scientists.

phase retrievalComputer Science::Information RetrievalPhysicsQC1-999phase problem020206 networking & telecommunications02 engineering and technology01 natural sciences010309 opticscoherent diffractive imaging0103 physical sciences0202 electrical engineering electronic engineering information engineering:NATURAL SCIENCES [Research Subject Categories]Coherent diffractive imagingmagnitude
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<title>Electronic eye occluder with time-counting and reflection control</title>

2008

ABSTRACT In pediatric ophthalmology 2 – 3 % of all the children are impacted by a visual pathology – amblyopia. It develops if a clear image isn’t presented to the retina during an early stage of the developmen t of the visual system. A common way of treating this pathology is to cover the better-seeing eye to force the „lazy” eye to learn seeing. However, children are often reluctant to wear such an occluder because they are as hamed or simply because they find it inconvenient. This fact requires to find a way how to track the regi me of occlusion because results of occlus ion is a hint that the actual regime of occlusion isn’t that what the optometrist has recommended. We design an electr…

Time informationgenetic structuresComputer sciencebusiness.industryTrack (disk drive)Control (management)ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONeye diseasesData loggerOcclusionComputer visionPediatric ophthalmologyTime momentArtificial intelligenceReflection (computer graphics)businessSPIE Proceedings
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Er:Cr:YSGG laser with electrooptic PLZT ceramics Q-switching Fabry-Perot interferometer output mirror

2001

Summary form only given. Q-switching of Er:Cr:YSGG laser with transparent PLZT ceramics electro-optic modulators was reported previously. The extremely large quadratic EO effect in PLZT allows to build small size moderate control voltages. The high induced birefringence in PLZT results from an essential contribution to polarization (and consequently to the birefringence) of processes with longer relaxation times up to seconds, corresponding to the Er:Cr:YSGG laser operating rate. PLZT ceramics have also a high value of the refractive index (n /spl ap/ 2.2-2.3 for /spl lambda/ = 3 /spl mu/m, slightly depending on PLZT composition and temperature) and thus considerable Fresnel reflections R/s…

BirefringenceKerr effectMaterials sciencebusiness.industrychemistry.chemical_elementLaserQ-switchinglaw.inventionErbiumOpticschemistrylawSapphireOptoelectronicsbusinessRefractive indexFabry–Pérot interferometerTechnical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics. Postconference Technical Digest (IEEE Cat. No.01CH37170)
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