journal
MENU ▼
Read by QxMD icon Read
search

Optometry and Vision Science: Official Publication of the American Academy of Optometry

journal
https://www.readbyqxmd.com/read/28742623/prediction-of-orthokeratology-lens-decentration-with-corneal-elevation
#1
Zhi Chen, Feng Xue, Jiaqi Zhou, Xiaomei Qu, Xingtao Zhou
SIGNIFICANCE: Lens decentration is common and unavoidable to some extent during ortho-k treatment. By using a simplified method, we are able to predict the magnitude and direction of ortho-k lens decentration, which provides useful insights in screening for ideal ortho-k candidates and to make a quick decision when decentration happens. PURPOSE: The aim of this study was to investigate the influence of corneal elevation asymmetry on ortho-k lens decentration. METHODS: Thirty-six eyes of 36 subjects were fitted with four-curve reverse geometry ortho-k contact lenses...
July 24, 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28737608/a-randomized-trial-of-soft-multifocal-contact-lenses-for-myopia-control-baseline-data-and-methods
#2
Jeffrey J Walline, Amber Gaume Giannoni, Loraine T Sinnott, Moriah A Chandler, Juan Huang, Donald O Mutti, Lisa A Jones-Jordan, David A Berntsen
SIGNIFICANCE: The Bifocal Lenses In Nearsighted Kids (BLINK) study is the first soft multifocal contact lens myopia control study to compare add powers and measure peripheral refractive error in the vertical meridian, so it will provide important information about the potential mechanism of myopia control. PURPOSE: The BLINK study is a National Eye Institute-sponsored, double-masked, randomized clinical trial to investigate the effects of soft multifocal contact lenses on myopia progression...
July 21, 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28727613/aberrometry-repeatability-and-agreement-with-autorefraction
#3
Mylan T Nguyen, David A Berntsen
SIGNIFICANCE: Commercially available aberrometers are essential to clinical studies evaluating refractive error and image quality. The Discovery System (Innovative Visual Systems, Elmhurst, IL) is a promising clinical instrument that allows investigators to export aberration data for research and analysis purposes. An assessment of the Discovery System's performance is essential to the interpretation of the data obtained. PURPOSE: The aims of this study were to determine the between-visit repeatability of refractive error and higher-order aberration measurements with the Discovery System and to examine between-instrument agreement of refractive error measurements with the Discovery System and Grand Seiko WAM-5500 open-field autorefractor (Grand Seiko Co...
July 19, 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28609419/retinal-macroaneurysm-associated-with-congenital-anomalous-retinal-artery
#4
Vinod Kumar, Rinky Agarwal, Parijat Chandra
PURPOSE: Retinal arteriolar macroaneurysms are a common cause of vision loss in elderly patients with hypertension and cardiovascular disease. Their occurrence in the young, however, is not well known. The purpose of this article is to describe an unusual cause of retinal arteriolar macroaneurysm in a healthy young man. CASE REPORT: A 30-year-old man presented with preretinal hemorrhage and macular exudation due to ruptured retinal artery macroaneurysm. The patient was treated with intravitreal bevacizumab and laser photocoagulation to the macroaneurysm...
June 10, 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28609418/surround-propinquity-and-tonic-accommodation
#5
Tammy Nguyen, Lawrence R Stark
PURPOSE: Previous studies of dark focus have found evidence of a propinquity response, in which subjects accommodate to the perceived distance of their surroundings despite being in absolute darkness. Their distance perception in a lighted room allows a spatial representation to persist within the darkened room. This study sought to establish the significance and magnitude of the propinquity response in a large sample of young adults, and to determine whether the propinquity response can be predicted by a subject's initial dark focus in an unknown dark room...
June 10, 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28609416/effect-of-stimulus-type-and-motion-on-smooth-pursuit-in-adults-and-children
#6
Valldeflors Vinuela-Navarro, Jonathan T Erichsen, Cathy Williams, J Margaret Woodhouse
PURPOSE: This study presents a two-degree customized animated stimulus developed to evaluate smooth pursuit in children and investigates the effect of its predetermined characteristics (stimulus type and size) in an adult population. Then, the animated stimulus is used to evaluate the impact of different pursuit motion paradigms in children. METHODS: To study the effect of animating a stimulus, eye movement recordings were obtained from 20 young adults while the customized animated stimulus and a standard dot stimulus were presented moving horizontally at a constant velocity...
June 10, 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28609415/effect-of-povidone-iodine-5-on-the-cornea-vision-and-subjective-comfort
#7
William H Ridder, Caren Oquindo, Kavita Dhamdhere, James Burke
PURPOSE: To determine the effects of povidone iodine 5% (Betadine 5%) applied to the eye on visual function, corneal integrity, and subjective complaints. METHODS: Ten subjects were chosen to participate in this study (average age 40.6 ± 19.6; age range 22-68). LogMAR acuity, contrast sensitivity, corneal fluorescein staining, and subjective complaints were measured before and after 60 μl of Betadine 5% or saline were applied to one eye (eligibility visit, baseline, 5, 30, and 60 minutes and 4 and 24 hours post-application)...
June 10, 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28604573/pupillometry-as-a-screening-tool-to-detect-pseudoexfoliation-syndrome
#8
Erdogan Yasar, Nilgun Yildirim, Eray Atalay, Emre Tambova, Ertugrul Colak
PURPOSE: Our objective was to evaluate the diagnostic value of a handheld pupillometer in differentiating eyes with pseudoexfoliation syndrome (PXS) from healthy controls. METHODS: This population-based, cross-sectional study was conducted in the province of Eskisehir, Turkey. Subjects 40 years of age and older were randomly recruited using stratified two-stage cluster sampling from the database of the Turkish Statistical Institute office in Eskisehir. Recruitment took place between June and October 2014...
June 9, 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28604572/food-induced-red-eye
#9
Susan G Rodgin
PURPOSE: This article addresses the etiology of red eyes and a novel case of food-induced red eye. CASE REPORT: An 82-year-old white male patient reported 50 years of episodes of severe unilateral bulbar injection in either eye following ingestion of certain foods. Thinned scleras in this particular patient made the injection in his eyes more observable. Photodocumentation of this reaction after he ingested these foods is shown. CONCLUSIONS: It is hypothesized that this is a new explanation for an intermittent, unilateral, self-limited red eye-a food-induced red eye...
June 9, 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28767546/a-pilot-study-of-horizontal-head-and-eye-rotations-in-baseball-batting
#10
Nick Fogt, Tyler W Persson
PURPOSE: The purpose of the study was to measure and compare horizontal head and eye tracking movements as baseball batters "took" pitches and swung at baseball pitches. METHODS: Two former college baseball players were tested in two conditions. A pitching machine was used to project tennis balls toward the subjects. In the first condition, subjects acted as if they were taking (i.e., not swinging) the pitches. In the second condition, subjects attempted to bat the pitched balls...
August 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28767545/instructions-for-authors-and-a-fresh-new-look
#11
Michael D Twa
No abstract text is available yet for this article.
August 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28737607/a-standardized-arabic-reading-acuity-chart-the-balsam-alabdulkader-leat-chart
#12
Balsam Alabdulkader, Susan J Leat
PURPOSE: The aim of this study was to develop and validate the first standardized Arabic continuous text near-visual-acuity chart, the Balsam Alabdulkader-Leat (BAL) chart. METHODS: Three versions of the BAL chart were created from previously validated sentences. Reading acuity (RA) and reading speed in standard-length words per minute (SLWPM) were measured for three versions of the BAL chart and three English charts (MNREAD, Colenbrander, and Radner) for 86 bilingual adults with normal vision aged 15 to 59 years...
August 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28737606/visual-acuity-and-contrast-sensitivity-development-in-children-sweep-visually-evoked-potential-and-psychophysics
#13
Fahad M Almoqbel, Elizabeth L Irving, Susan J Leat
PURPOSE: The purpose of this study was to investigate the development of visual acuity (VA) and contrast sensitivity in children as measured with objective (sweep visually evoked potential) and subjective, psychophysical techniques, including signal detection theory (SDT), which attempts to control for differences in criterion or behavior between adults and children. Furthermore, this study examines the possibility of applying SDT methods with children. METHODS: Visual acuity and contrast thresholds were measured in 12 children 6 to 7 years old, 10 children 8 to 9 years old, 10 children 10 to 12 years old, and 16 adults...
August 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28727615/multiplexing-prisms-for-field-expansion
#14
Eli Peli, Jae-Hyun Jung
PURPOSE: Prisms used for field expansion are limited by the optical scotoma at a prism apex (apical scotoma). For a patient with two functioning eyes, fitting prisms unilaterally allows the other eye to compensate for the apical scotoma. A monocular patient's field loss cannot be expanded with a conventional or Fresnel prism because of the apical scotoma. A newly invented optical device, the multiplexing prism (MxP), was developed to overcome the apical scotoma limitation in monocular field expansion...
August 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28727614/a-5-minute-interval-between-two-dilating-eye-drops-increases-their-effect
#15
Eric Denion, Frédérique Charlot, Guillaume Béraud
PURPOSE: Patients are usually advised to wait 5 minutes between eye drops. This delay supposedly allows the first drop not to be washed out by the second one, thereby increasing the combined effect. However, in the only experimental study conducted in humans on the concurrent administration of two different eye drops, the authors concluded that a 10-minute time interval between eye drops did not increase their combined effect. Our study was designed to address this puzzling observation...
August 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28708697/simultaneous-physical-and-mental-effort-alters-visual-function
#16
Jesús Vera, Raimundo Jiménez, José Antonio García, David Cárdenas
PURPOSE: Perceptual processing is sensitive to physiological changes. Thus, the homeostatic disturbances during and after exercise may alter the visual function. Here, we investigated the effect of simultaneous physical effort and two levels of cognitive demand on skills related to the visuoperceptual and motor processing. METHODS: Eighteen male regular exercisers performed 60 minutes of simultaneous physical exercise (cycling at 60 ± 5% of reserve heart rate) and cognitive effort (mental workload)...
August 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28692599/cavitary-choroidal-metastasis-from-clear-cell-renal-cell-carcinoma
#17
Bernadete Ayres, Tanya McClendon, Hakan Demirci
PURPOSE: To report the clinical, funduscopic, and echographic features of a choroidal metastatic tumor from a clear cell renal cell carcinoma presenting with intralesional cavitation. CASE REPORT: An 81-year-old man with history of clear cell renal cell carcinoma presented with blurred vision. A clinical examination including standardized ultrasound was performed, which revealed a choroidal mass with cystic-like cavitation. The patient underwent brachytherapy with regression of the tumor...
August 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28644209/an-atypical-case-of-paracentral-acute-middle-maculopathy
#18
Cheryl Haskes, Shannon Santapaola, Jordan Zinn
PURPOSE: This is a case presentation of paracentral acute middle maculopathy in a 33-year-old white man with borderline hyperlipidemia. Paracentral acute middle maculopathy was originally thought to be a variant of acute macular neuroretinopathy; however, it is now generally accepted that these two conditions are separate disease entities. The etiology, evolution, and pathophysiology of acute macular neuroretinopathy and paracentral acute middle maculopathy are discussed, as well as current diagnostic techniques...
August 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28650386/corneal-nerve-morphology-and-tear-film-substance-p-in-diabetes
#19
Maria Markoulli, Jingjing You, Juno Kim, Carmen L Duong, Jonathan B Tolentino, Joshua Karras, Edward Lum
PURPOSE: This work aims to characterize the relationship between tear film neuropeptide substance P and the structural integrity of the sub-basal nerve plexus in diabetes. METHODS: Seventeen healthy control participants and nine participants with diabetes were recruited in this cross-sectional study. Total protein content and substance P concentrations were determined in the flush tears of participants. Corneal nerve morphology was assessed by capturing the corneal sub-basal nerve plexus using the Heidelberg Retinal Tomograph II with the Rostock Corneal Module (Heidelberg Engineering GmbH, Heidelberg, Germany) in the central cornea...
July 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28650385/identity-crisis
#20
Michael D Twa
No abstract text is available yet for this article.
July 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
journal
journal
30085
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"