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"Vision Evaluation"

Anaïs Mounier, Emilie Agard, Ikrame Douma, Hussam El Chehab, Anne L Vie, Jean M Dot, Corinne Dot
PURPOSE: To report a case of macular toxicity and blind spot enlargement during voriconazole treatment. METHODS: This is a case report. RESULTS: We describe a 77-year-old man treated by voriconazole for pulmonary aspergillosis, who complained of visual disorders such as dyschromatopsia and visual hallucinations 3 days after voriconazole initiation. Initial ophthalmological examination found no loss of visual acuity. The anterior and posterior segments presented no anomalies...
March 1, 2018: European Journal of Ophthalmology
Jason S Ng, Warren A Morton
SIGNIFICANCE: The Farnsworth D15 test can be subverted by patients even with severe red-green color deficiency. PURPOSE: To describe a case showing that perfect performance on the Farnsworth D15 is possible after practicing the test. CASE REPORT: A 23-year-old man presented for a comprehensive color vision evaluation. He had only minor complaints with regard to color vision and otherwise normal vision and ocular health. Based on anomaloscope findings, he was diagnosed with protanopia, a form of dichromacy in which the patient does not have any functional L cones, only S and M cones...
February 8, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
Eman A Awad, Waleed A Abou Samra, Magda A Torky, Amr M El-Kannishy
BACKGROUND: Keratoconus (KC) is usually a bilateral corneal ectatic disease. For significant asymmetric presentation (so called unilateral KC), the fellow eye has the mildest and earliest form of the disease, which is typically called forme fruste keratoconus. The aim of this study was to evaluate the sensitivity and specificity of parameters derived from a Scheimpflug imaging system (Pentacam) as well as the changes in the quality of mesopic vision in the apparently normal fellow eye (forme fruste) to detect the earliest and most sensitive parameters...
October 6, 2017: BMC Ophthalmology
Michael B Hoffmann, Jan Brands, Wolfgang Behrens-Baumann, Michael Bach
PURPOSE: Objective assessment of visual acuity (VA) is possible with VEP methodology, but established with sufficient precision only for vision better than about 1.0 logMAR. We here explore whether this can be extended down to 2.0 logMAR, highly desirable for low-vision evaluations. METHODS: Based on the stepwise sweep algorithm (Bach et al. in Br J Ophthalmol 92:396-403, 2008) VEPs to monocular steady-state brief onset pattern stimulation (7.5-Hz checkerboards, 40% contrast, 40 ms on, 93 ms off) were recorded for eight different check sizes, from 0...
December 2017: Documenta Ophthalmologica. Advances in Ophthalmology
Peter M K de Blank, Michael J Fisher, Grant T Liu, David H Gutmann, Robert Listernick, Rosalie E Ferner, Robert A Avery
Optic pathway gliomas (OPGs) occur in 15%-20% of children with neurofibromatosis type 1 (NF1), leading to visual deficits in fewer than half of these individuals. The goal of chemotherapy is to preserve vision, but vision loss in NF1-associated OPG can be unpredictable. Determining which child would benefit from chemotherapy and, equally important, which child is better observed without treatment can be difficult. Unfortunately, despite frequent imaging and ophthalmologic evaluations, some children experience progressive vision loss before treatment...
September 2017: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
M Tretola, A R Di Rosa, E Tirloni, M Ottoboni, C Giromini, F Leone, C E M Bernardi, V Dell'Orto, V Chiofalo, L Pinotti
The use of alternative feed ingredients in farm animal's diets can be an interesting choice from several standpoints, including safety. In this respect, this study investigated the safety features of selected former food products (FFPs) intended for animal nutrition produced in the framework of the IZS PLV 06/14 RC project by an FFP processing plant. Six FFP samples, both mash and pelleted, were analysed for the enumeration of total viable count (TVC) (ISO 4833), Enterobacteriaceae (ISO 21528-1), Escherichia coli (ISO 16649-1), coagulase-positive Staphylococci (CPS) (ISO 6888), presumptive Bacillus cereus and its spores (ISO 7932), sulphite-reducing Clostridia (ISO 7937), yeasts and moulds (ISO 21527-1), and the presence in 25 g of Salmonella spp...
August 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
Abinaya Priya Venkataraman, Simon Winter, Robert Rosén, Linda Lundström
PURPOSE: Peripheral resolution acuity depends on the orientation of the stimuli. However, it is uncertain if such a meridional effect also exists for peripheral detection tasks because they are affected by optical errors. Knowledge of the quantitative differences in acuity for different grating orientations is crucial for choosing the appropriate stimuli for evaluations of peripheral resolution and detection tasks. We assessed resolution and detection thresholds for different grating orientations in the peripheral visual field...
June 2016: Optometry and Vision Science: Official Publication of the American Academy of Optometry
Tine Vandenbroucke, Ronald Buyl, Julie De Zaeytijd, Miriam Bauwens, André Uvijls, Elfride De Baere, Bart P Leroy
PURPOSE: To investigate the type and severity of acquired colour vision deficiencies (CVDs) in molecularly proven Stargardt disease (STD) and to establish whether a relationship exists between best-corrected visual acuity (BCVA) and full-field electroretinography (ffERG), and the degree of CVD. METHODS: A retrospective, cross-sectional study of 73 patients with a molecularly proven diagnosis of STD, who underwent extensive colour vision evaluation, using pseudo-isochromatic and arrangement tests...
2015: Ophthalmic Research
A Laborante, C Longo, E Mazzilli, K Giardinelli
PURPOSE: To evaluate the effect induced by UVA radiation with corneal iontophoresis and cross-linking. MATERIALS AND METHODS: From February 2013 to August 2014 we saw 15 eyes of 15 patients, age range 19-38 years (10 women and 5 men) keratoconus stage 1-2. Vision evaluation was carried out with ETDRS scale and Topography and Pachymetry. To evaluate line of demarcation with the confocal microscope and corneal optical coherence tomography (OCT) and the pain with the Faces Pain Scale...
2015: La Clinica Terapeutica
Bhaskar Janve, Wade Yang, Charles Sims
Power ultrasound reduces the traditional corn steeping time from 18 to 1.5 h during tortilla chips dough (masa) processing. This study sought to examine consumer (n = 99) acceptability and quality of tortilla chips made from the masa by traditional compared with ultrasonic methods. Overall appearance, flavor, and texture acceptability scores were evaluated using a 9-point hedonic scale. The baked chips (process intermediate) before and after frying (finished product) were analyzed using a texture analyzer and machine vision...
June 2015: Journal of Food Science
Jason S Ng, Eriko Self, John E Vanston, Andrew L Nguyen, Michael A Crognale
PURPOSE: Clinical color vision evaluation has been based primarily on the same set of tests for the past several decades. Recently, computer-based color vision tests have been devised, and these have several advantages but are still not widely used. In this study, we evaluated the Waggoner Computerized Color Vision Test (CCVT), which was developed for widespread use with common computer systems. METHODS: A sample of subjects with (n = 59) and without (n = 361) color vision deficiency (CVD) were tested on the CCVT, the anomaloscope, the Richmond HRR (Hardy-Rand-Rittler) (4th edition), and the Ishihara test...
April 2015: Optometry and Vision Science: Official Publication of the American Academy of Optometry
Pawan Kumar Singh, Aniruddha Purushottam Dayama, Rakhi Maiwall, Vineet Sehgal, Pradeep Venkatesh, Pravas Chandra Mishra, Tulika Seth, Manoranjan Mahapatra
Forty-five years old male, a known case of T cell acute lymphoblastic leukemia (ALL) on maintenance therapy presented with bilateral painless progressive diminution of vision. Evaluation revealed cytomegalovirus (CMV) retinitis with low CD4 counts. CMV retinitis is usually seen in HIV disease or in post allogenic stem cell transplant recipients. CMV retinitis occurring in ALL maintenance phase is very rare. The disease is aggressive and shows incomplete response to medical therapy.
September 2014: Indian Journal of Hematology & Blood Transfusion
Hui Liu, Xu Wang
In condition of direct vision on hindus of eye, microperimeter can quantitatively detect the retinal light sensitivity of macular area, and record real time tracking of the eye, automatically analyze the location and stability of fixation. Microperimeter matches hindus image with micro cyclogram point-to-point, thus it achieves the combination of visual function and structure. The characteristics of microperimeter have good relations with subjective vision, so it can be a new method for the accurate vision evaluation and has application potential to assess the visual function in legal medicine...
June 2014: Fa Yi Xue za Zhi
Christina Nye
Implementing standard vision screening techniques in the primary care practice is the most effective means to detect children with potential vision problems at an age when the vision loss may be treatable. A critical period of vision development occurs in the first few weeks of life; thus, it is imperative that serious problems are detected at this time. Although it is not possible to quantitate an infant's vision, evaluating ocular health appropriately can mean the difference between sight and blindness and, in the case of retinoblastoma, life or death...
June 2014: Pediatric Clinics of North America
Paul D Loprinzi, Nazlee Zebardast, Pradeep Y Ramulu
PURPOSE: To examine the association between vision loss and cardiorespiratory fitness among young and middle-age U.S. adults. DESIGN: The study had a cross-sectional design. SETTING: The National Health and Nutrition Examination Survey 1999-2004 served as the study setting. SUBJECTS: Study subjects included 3135 adults ages 20 to 49 years. MEASURES: Cardiorespiratory fitness was assessed from cardiorespiratory extrapolation using heart rate response during submaximal treadmill testing, with inadequate cardiorespiratory fitness defined as below the 60th percentile for age and gender...
March 2015: American Journal of Health Promotion: AJHP
Kjell Gunnar Gundersen, Richard Potvin
BACKGROUND: To compare near, intermediate, and distance vision, and quality of vision using appropriate subjective questionnaires, when monofocal or apodized diffractive multifocal intraocular lenses (IOLs) are binocularly implanted. METHODS: Patients with different binocular IOLs implanted were recruited after surgery and had their visual acuity tested, and quality of vision evaluated, at a single diagnostic visit between 3 and 8 months after second-eye surgery...
2013: Clinical Ophthalmology
E E Lutsevich, N N Podgornaia, T V Tikhomirova, Khaled Alhumidi
The article describes the results of conservative treatment of 78 patients with injuries of ocular adnexa (isolated fractures of orbital walls as well as cicatrical deformities of orbits and eyelids). Ophthalmological assessment was made both in the early and the late periods following blunt trauma. All patients underwent a standard assessment of functional ability of the eye and, additionally, an orbital computed tomography scan to characterize the fractures. In all cases physiotherapy (endonasal electrophoresis with proteolytic enzymes) was carried out to resolve the orbital hemorrhage...
July 2013: Vestnik Oftalmologii
Savleen Kaur, Sparshi Jain, Harsimrat B S Sodhi, Anju Rastogi, Kamlesh
Optic nerve hypoplasia (ONH) is a congenital anomaly of the optic disc that might result in moderate to severe vision loss in children. With a vast number of cases now being reported, the rarity of ONH is obviously now refuted. The major aspects of ophthalmic evaluation of an infant with possible ONH are visual assessment, fundus examination, and visual electrophysiology. Characteristically, the disc is small, there is a peripapillary double-ring sign, vascular tortuosity, and thinning of the nerve fiber layer...
May 2013: Oman Journal of Ophthalmology
P Veselý, S Synek
PURPOSE: The main goal of our study was to determine the database of parameters of simple binocular vision (SBV) in healthy adult population. Next goal was to verify current data of particular parameters of SBV. Recent public data (e.g. Divisova, Hromadkova) were determined without proper specification of examination (size of fusion object), or are too diffused (e.g. from 15 to 25 prismatic diopters = pD). At last we want to prove, if there are some other factors, which could influence parameters of SBV...
March 2013: Ceská a Slovenská Oftalmologie
A D Chuprov, K S Ivonin, A A Zamyrov, Iu V Kudriavtseva
Stereoscopic vision in patients after binocular implantation of different intraocular lens (IOL) models was evaluated. 24 patients (48 eyes) after cataract surgery were enrolled in the study. Follow-up was 12 months. 1st group included 9 patients (18 eyes) after cataract surgery and implantation of Russian trifocal refractive-diffractive IOL MIOL-Record 3. 2nd group included 6 patients (12 eyes) after cataract surgery and implantation of Russian bifocal refractive-diffractive IOL MIOL-Accord 3. 3rd group included 9 patients (12 eyes) after cataract surgery and implantation of Russian monofocal IOL MIOL-2...
January 2013: Vestnik Oftalmologii
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