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Scooped by
AEOPTOMETRISTAS
March 25, 2015 6:01 AM
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Yildirim, F., Meyer, V., & Cornelissen, F. W. (2015). Eyes on crowding: Crowding is preserved when responding by eye and similarly affects identity and position accuracy. Journal of vision, 15(2), 21.
Peripheral vision guides recognition and selection of targets for eye movements. Crowding—a decline in recognition performance that occurs when a potential target is surrounded by other, similar, objects—influences peripheral object recognition. A recent model study suggests that crowding may be due to increased uncertainty about both the identity and the location of peripheral target objects, but very few studies have assessed these properties in tandem.
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AEOPTOMETRISTAS
March 25, 2015 2:18 AM
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Legge, G. E. (2014). Prentice Medal Lecture 2013: Visual Accessibility: A Challenge for Low-Vision Research. Optometry & Vision Science, 91(7), 696-706.
ABSTRACT: Low vision may be defined as any chronic form of vision impairment, not correctable by glasses or contact lenses, that adversely affects everyday function. Visual accessibility refers to factors that make an environment, device, or display usable by vision. In this article, I discuss th...
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AEOPTOMETRISTAS
March 17, 2015 5:42 AM
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Spaide, R. F. (2014). PEAU D'ORANGE AND ANGIOID STREAKS: Manifestations of Bruch Membrane Pathology. Retina (Philadelphia, Pa.).
Purpose: The aim of this study was to characterize peau d'orange and angioid streaks, characteristic findings in eyes of patients with pseudoxanthoma elasticum, by examining fundus photography and optical coherence tomography imaging.
Methods: Color photographs were evaluated directly as were th...
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AEOPTOMETRISTAS
March 12, 2015 2:41 AM
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Priya, A., Veena, K., Thulasiraj, R., Fredrick, M., Venkatesh, R., Sengupta, S., & Bassett, K. (2014). Vision Screening by Teachers in Southern Indian Schools: Testing a New “All Class Teacher” Model. Ophthalmic epidemiology, (0), 1-6.
Aim: To study the effectiveness and cost of a new school vision screening program involving all class teachers (ACTs) compared with the standard program involving a limited number of selected teachers (STs) in Southern India.
Articulo completo: http://218.248.31.202/journal/article/Indian%20Schools.PDF
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AEOPTOMETRISTAS
March 12, 2015 2:35 AM
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Luo, J., Yao, P., Li, M., Xu, G., Zhao, J., Tian, M., & Zhou, X. (2015). Quantitative Analysis of Microdistortions in Bowman's Layer Using Optical Coherence Tomography After SMILE Among Different Myopic Corrections.Journal of refractive surgery (Thorofare, NJ: 1995), 31(2), 104.
PURPOSE:To quantitatively analyze the characteristics of Bowman’s layer microdistortions after femtosecond laser small incision lenticule extraction (SMILE) among different myopic corrections, and their correlations with stromal lenticule thickness.METHODS:In this nonrandomized, prospective, controlled study, 63 eyes of 32 consecutive patients undergoing SMILE were divided into three groups
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AEOPTOMETRISTAS
March 6, 2015 8:46 AM
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Taylor, K. R., Molchan, R. P., Townley, J. R., Caldwell, M. C., & Panday, V. A. (2014). The Effect of Silicone Hydrogel Bandage Soft Contact Lens Base Curvature on Comfort and Outcomes After Photorefractive Keratectomy. Eye & contact lens.
Objective: To evaluate the relative pain and the relative amount of contact lens loss experienced using two different base curvatures (BCs) of the Acuvue Oasys bandage soft contact lens (BSCL) after photorefractive keratectomy (PRK).
One hundred forty patients undergoing PRK on either the Allegretto or the VISX laser at the Joint Warfighter Refractive Surgery Center in Lackland AFB, TX, were randomized to one of the two different BCs of the Acuvue Oasys BSCL: 8.4 or 8.8 mm. Patients were evaluated on postoperative days 1 and 4 during which they completed a survey rating absolute pain in each eye on a visual analog pain scale. Lens loss was recorded throughout the study.
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AEOPTOMETRISTAS
March 3, 2015 10:55 AM
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AEOPTOMETRISTAS
February 25, 2015 7:11 AM
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Raiskup, F., Theuring, A., Pillunat, L. E., & Spoerl, E. (2015). Corneal collagen crosslinking with riboflavin and ultraviolet-A light in progressive keratoconus: Ten-year results. Journal of Cataract & Refractive Surgery, 41(1), 41-46.
Purpose: To analyze the 10-year results of corneal collagen crosslinking (CXL) for keratoconus.
Setting: Department of Ophthalmology, University Hospital, Dresden, Germany.
Design: Retrospective interventional case series.
Methods: The study included eyes treated for progressive keratoconus from 2000 to 2004. Corneal collagen crosslinking was performed by applying riboflavin and ultraviolet-A. The corrected distance visual acuity (CDVA), corneal topography, and endothelial cell count (ECC) were recorded preoperatively and 10 years postoperatively.
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AEOPTOMETRISTAS
February 25, 2015 6:56 AM
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Tabibian, D., Hoogewoud, F., Mavrakanas, N., & Schutz, J. S. (2015). Misdirected aqueous flow in rhegmatogenous retinal detachment: A pathophysiology update. Survey of ophthalmology, 60(1), 51-59. Abstract It is widely accepted that the origin of subretinal fluid in rhegmatogenous retinal detachment (RRD) is liquid vitreous and that posterior vitreous detachment (PVD) and associated retinal tears are caused by vitreoretinal traction from intra-ocular currents, contraction of collagen fibers, and gravity.
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AEOPTOMETRISTAS
February 11, 2015 4:33 AM
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Tidbury, L. P., & O'Connor, A. R. (2014). Testing vision testing: quantifying the effect of movement on visual acuity measurement. Eye.
Abstract Purpose Assessment of visual acuity (VA) has been shown to vary between tests, which may be attributable in part to test inaccuracies, such as a change in the distance between the chart and subject. Therefore, the study aim was to quantify changes in chart/patient separation during near and distance VA testing, and to analyse the relationship between VA and movement observed. Methods Volunteer orthoptists and subjects were filmed during near and distance VA testing, with the amount of movement determined from the recording. Controlling for movement using chin rests and chart stands, VA was retested. Actual changes in VA due to a change in subject or chart movement were compared with theoretical predictions.
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AEOPTOMETRISTAS
February 4, 2015 11:47 PM
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Schornack, M. M. (2015). Scleral Lenses: A Literature Review. Eye & contact lens, 41(1), 3-11.
Objective: To present a comprehensive review of current and historical literature on scleral lenses.
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Scooped by
AEOPTOMETRISTAS
February 4, 2015 11:37 PM
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Joshi, A., Bennett, D. B., & Stafsudd, O. M. (2015). Monitoring Corneal Hydration With a Mid-infrared (IR) Laser. The ocular surface, 13(1), 43-46.
Abstract
A mid-infrared (IR) source at 3 μm radiation is used as a probe to measure hydration in porcine cornea. Since the Er3+:YAG emission targets vibrational modes (around 3300cm−1) in the H2O molecule, it is highly sensitive to changes in water content in the first ∼10 μm of the corneal tissue.
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AEOPTOMETRISTAS
January 29, 2015 10:44 AM
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De Bernardo, M., Borrelli, M., Mariniello, M., Lanza, M., & Rosa, N. (2015). Pentacam vs SP3000P specular microscopy in measuring corneal thickness.Contact Lens and Anterior Eye, 38(1), 21-27.
Purpose
To compare corneal thickness (CT) measurements obtained with SP3000P specular microscope and Pentacam in eyes screened to undergo refractive surgery (RS).
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AEOPTOMETRISTAS
March 25, 2015 5:57 AM
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Darian-Smith, E., Howie, A. R., Abell, R. G., Kerr, N., Allen, P. L., Vote, B. J., & Toh, T. Y. (2015). Intraocular pressure during femtosecond laser pretreatment: Comparison of glaucomatous eyes and nonglaucomatous eyes.Journal of Cataract & Refractive Surgery, 41(2), 272-277.
Purpose To compare changes in intraocular pressure (IOP) during femtosecond laser pretreatment of cataract between glaucomatous eyes and nonglaucomatous eyes. Setting Launceston Eye Institute and Launceston Eye Hospital, Launceston, Australia. Design Nonrandomized interventional prospective case series.
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AEOPTOMETRISTAS
March 25, 2015 2:14 AM
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Omodaka, K., Murata, T., Sato, S., Takahashi, M., Tatewaki, Y., Nagasaka, T., ... & Nakazawa, T. (2014). Correlation of magnetic resonance imaging optic nerve parameters to optical coherence tomography and the visual field in glaucoma. Clinical & experimental ophthalmology, 42(4), 360-368.
Background: To determine the viability of using magnetic resonance imaging measurement of optic nerve morphology as an objective analysis of glaucomatous damage.Design: Retrospective study conducted at Tohoku University Hospital.
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AEOPTOMETRISTAS
March 17, 2015 5:37 AM
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Woreta, F. A., Davis, G. W., & Bower, K. S. (2014). LASIK and surface ablation in corneal dystrophies. Survey of ophthalmology. Abstract Corneal dystrophies are a rare group of hereditary disorders, that are bilateral, non-inflammatory, and progressive. Clinically, they can be classified based on the anatomic layer of the cornea affected. Refractive surgery and phototherapeutic keratectomy (PTK) can be performed with caution in patients with certain corneal dystrophies, but should be avoided in others. For epithelial basement membrane dystrophy, photorefractive keratectomy (PRK) is the procedure of choice for treatment of refractive error, and PTK may be performed for the treatment of recurrent erosions or irregular astigmatism. PRK and laser-assisted in situ keratomileusis (LASIK) have been associated with exacerbation of combined granular-lattice corneal dystrophy. LASIK and PRK appear to be safe in mild forms of posterior polymorphous corneal dystrophy, whereas LASIK should be avoided in Fuchs dystrophy. The safety of refractive surgery and PTK in the remainder of epithelial, Bowman layer, and stromal dystrophies has yet to be established.
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AEOPTOMETRISTAS
March 12, 2015 2:37 AM
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Wei, L., Liang, G., Cai, C., & Lv, J. (2015). Association of vitamin C with the risk of age‐related cataract: a meta‐analysis. Acta Ophthalmologica.
Purpose: Whether vitamin C is a protective factor for age-related cataract remains unclear. Thus, we conducted a meta-analysis to summarize the evidence from epidemiological studies of vitamin C and the risk of age-related cataract. Methods: Pertinent studies were identified by searching in PubMed and in Webscience. The random effect model was used to combine the results. Meta-regression and subgroups analyses were used to explore potential sources of between-study heterogeneity. Publication bias was estimated using Egger's regression asymmetry test.
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AEOPTOMETRISTAS
March 6, 2015 8:56 AM
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Guohong Gao, Chaohu Ouyang, Jinhui Dai, Feng Xue, Xiaoying Wang, Leilei Zou, Minjie Chen, Fei Ma and Manrong Yu. Baseline traits of patients presenting at a low vision clinic in Shanghai, China BMC Ophthalmology 2015, 15:16
Background Low vision, along with cataract, trachoma, onchocerciasis, childhood blindness and refractive error, is one of the priorities in the global initiative, VISION 2020-The Right to Sight. The purpose of this study was to characterize the traits of patients presenting at a low vision clinic in China.
Methods A retrospective study was conducted of the records of 299 patients who visited the Low Vision Clinic of Eye and ENT Hospital Affiliated to Fudan University from January 2009 to May 2014. Reviewed parameters included age, gender, education, occupation, cause of visual impairment and types of low vision aids (LVAs) dispensed.
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AEOPTOMETRISTAS
March 6, 2015 8:43 AM
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Wagner, S., Conrad, F., Bakaraju, R. C., Fedtke, C., Ehrmann, K., & Holden, B. A. (2015). Power profiles of single vision and multifocal soft contact lenses.Contact Lens and Anterior Eye, 38(1), 2-14.
Purpose The purpose of this study was to investigate the optical zone power profile of the most commonly prescribed soft contact lenses to assess their potential impact on peripheral refractive error and hence myopia progression. Methods The optical power profiles of six single vision and ten multifocal contact lenses of five manufacturers in the powers −1.00 D, −3.00 D, and −6.00 D were measured using the SHSOphthalmic (Optocraft GmbH, Erlangen, Germany). Instrument repeatability was also investigated.
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AEOPTOMETRISTAS
March 3, 2015 10:51 AM
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Mehta, V. V., Hull, C. C., & Lawrenson, J. G. (2015). The effect of varying glucose levels on the ex vivo crystalline lens: implications for hyperglycaemia‐induced refractive changes. Ophthalmic and Physiological Optics, 35(1), 52-59. Abstract Purpose: Refractive changes in diabetic eyes have long been reported but with equivocal results. The lens has been a more recent focus as the source of any change but it is possible that multiple sources of variation have made it difficult to demonstrate a systematic change clinically. The aim of this study was therefore to use a bovine lens model to investigate the optical changes in hyperglycaemia and when lenses are returned to normal glucose levels as would occur following commencement of treatment.
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AEOPTOMETRISTAS
February 25, 2015 7:06 AM
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Wool, L. E., Komban, S. J., Kremkow, J., Jansen, M., Li, X., Alonso, J. M., & Zaidi, Q. (2015). Salience of unique hues and implications for color theory.Journal of Vision, 15(2), 10.
Abstract The unique hues—blue, green, yellow, red—form the fundamental dimensions of opponent-color theories, are considered universal across languages, and provide useful mental representations for structuring color percepts. However, there is no neural evidence for them from neurophysiology or low-level psychophysics. Tapping a higher prelinguistic perceptual level,
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AEOPTOMETRISTAS
February 11, 2015 4:47 AM
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Vianna, L. M., Muñoz, B., Hwang, F. S., Gupta, A., & Jun, A. S. (2015). Variability in Oculus Pentacam Tomographer Measurements in Patients With Keratoconus. Cornea, 34(3), 285-289.
Purpose: The aim of this study was to determine intertest variability of measurements taken by the Pentacam tomographer in eyes with keratoconus.
Methods: Three Pentacam measurements with 1-minute intervals were taken from 101 eyes (81 keratoconus and 20 controls) from 57 patients (47 keratoconu...
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AEOPTOMETRISTAS
February 11, 2015 4:28 AM
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Geloneck, M. M., Crowell, E. L., Wilson, E. B., Synder, B. E., Chuang, A. Z., Baker, L. A., ... & Feldman, R. M. (2013). Correlation Between Intraocular Pressure and Body Mass Index in the Seated and Supine Positions. Journal of glaucoma.
Purpose: Examine the relationship between intraocular pressure (IOP) and body mass index (BMI) in the seated and supine positions.
Patients and Methods: A prospective observational study was conducted in which the IOP was measured with a Tono-Pen (Reichert Inc., Depew, NY) in seated and supine p...
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AEOPTOMETRISTAS
February 4, 2015 11:45 PM
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Sengupta, S., Nguyen, A. M., van Landingham, S. W., Solomon, S. D., Do, D. V., Ferrucci, L., ... & Ramulu, P. Y. (2015). Evaluation of real-world mobility in age-related macular degeneration. BMC Ophthalmology, 15(1), 9.
Previous research has suggested an association between poor vision and decreased mobility, including restricted levels of physical activity and travel away from home. We sought to determine the impact of age-related macular degeneration (AMD) on these measures of mobility.
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AEOPTOMETRISTAS
January 29, 2015 10:49 AM
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Krishnacharya, P. S. (2014). Study on accommodation by autorefraction and dynamic refraction in children. Journal of optometry, 7(4), 193-202.
Purpose Childhood accommodation interferes with accurate diagnosis of the latent refractive errors. Dynamic retinoscopy offers accurate measurements of accommodative response, while an autorefractometer can predict the accommodative system activation in children. A correlation of the accommodative effort with the dynamic refraction has been investigated in emmetropic children, before and after cycloplegia.
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Los resultados indican que están afectados del mismo modo la precisión del reconocimiento periférico y los sacádicos para localizar el objeto en el "amontonamiento".