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https://www.readbyqxmd.com/read/26163943/equating-visual-function-scales-to-facilitate-reporting-of-medicare-functional-g-code-severity-complexity-modifiers-for-low-vision-patients
#1
Tiffany L Chan, Monica S Perlmutter, Melva Andrews, Janet S Sunness, Judith E Goldstein, Robert W Massof
OBJECTIVE: To present a method of estimating and equating scales across functional assessment instruments that appropriately represents changes in a patient's functional ability and can be meaningfully mapped to changes in Medicare G-code severity modifiers. DESIGN: Previously published measures of patients' overall visual ability, estimated from low-vision patient responses to 7 different visual function rating scale questionnaires, are equated and mapped onto Medicare G-code severity modifiers...
October 2015: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/25856370/clinically-meaningful-rehabilitation-outcomes-of-low-vision-patients-served-by-outpatient-clinical-centers
#2
MULTICENTER STUDY
Judith E Goldstein, Mary Lou Jackson, Sandra M Fox, James T Deremeik, Robert W Massof
IMPORTANCE: To facilitate comparative clinical outcome research in low vision rehabilitation, we must use patient-centered measurements that reflect clinically meaningful changes in visual ability. OBJECTIVE: To quantify the effects of currently provided low vision rehabilitation (LVR) on patients who present for outpatient LVR services in the United States. DESIGN, SETTING, AND PARTICIPANTS: Prospective, observational study of new patients seeking outpatient LVR services...
July 2015: JAMA Ophthalmology
https://www.readbyqxmd.com/read/25813453/comparing-the-impact-of-refractive-and-nonrefractive-vision-loss-on-functioning-and-disability-the-salisbury-eye-evaluation
#3
COMPARATIVE STUDY
Nazlee Zebardast, Bonnielin K Swenor, Suzanne W van Landingham, Robert W Massof, Beatriz Munoz, Sheila K West, Pradeep Y Ramulu
PURPOSE: To compare the effects of uncorrected refractive error (URE) and nonrefractive visual impairment (VI) on performance and disability measures. DESIGN: Cross-sectional, population-based study. PARTICIPANTS: A total of 2469 individuals with binocular presenting visual acuity (PVA) of ≥ 20/80 who participated in the first round of the Salisbury Eye Evaluation study. METHODS: The URE was defined as binocular PVA of ≤ 20/30, improving to >20/30 with subjective refraction...
June 2015: Ophthalmology
https://www.readbyqxmd.com/read/25073745/visual-ability-of-patients-seeking-outpatient-low-vision-services-in-the-united-states
#4
MULTICENTER STUDY
Judith E Goldstein, Melissa W Chun, Donald C Fletcher, James T Deremeik, Robert W Massof
IMPORTANCE: Most patients with low vision are elderly and have functional limitations from other health problems that could add to the functional limitations caused by their visual impairments. OBJECTIVE: To identify factors that contribute to visual ability measures in patients who present for outpatient low vision rehabilitation (LVR) services. DESIGN, SETTING, AND PARTICIPANTS: As part of a prospective, observational study of new patients seeking outpatient LVR, 779 patients from 28 clinical centers in the United States were enrolled in the Low Vision Rehabilitation Outcomes Study (LVROS) from April 25, 2008, through May 2, 2011...
October 2014: JAMA Ophthalmology
https://www.readbyqxmd.com/read/25052992/reading-ability-and-reading-engagement-in-older-adults-with-glaucoma
#5
Angeline M Nguyen, Suzanne W van Landingham, Robert W Massof, Gary S Rubin, Pradeep Y Ramulu
PURPOSE: We evaluated the impact of glaucoma-related vision loss on reading ability and reading engagement in 10 reading activities. METHODS: A total of 63 glaucoma patients and 59 glaucoma suspect controls self-rated their level of reading difficulty for 10 reading items, and responses were analyzed using Rasch analysis to determine reading ability. Reading engagement was assessed by asking subjects to report the number of days per week they engaged in each reading activity...
August 2014: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/25016366/low-vision-depression-prevention-trial-in-age-related-macular-degeneration-a-randomized-clinical-trial
#6
RANDOMIZED CONTROLLED TRIAL
Barry W Rovner, Robin J Casten, Mark T Hegel, Robert W Massof, Benjamin E Leiby, Allen C Ho, William S Tasman
PURPOSE: To compare the efficacy of behavior activation (BA) + low vision rehabilitation (LVR) with supportive therapy (ST) + LVR to prevent depressive disorders in patients with age-related macular degeneration (AMD). DESIGN: Single-masked, attention-controlled, randomized, clinical trial with outcome assessment at 4 months. PARTICIPANTS: Patients with AMD and subsyndromal depressive symptoms attending retina practices (n = 188). INTERVENTIONS: Before randomization, all subjects had 2 outpatient LVR visits, and were then randomized to in-home BA+LVR or ST+LVR...
November 2014: Ophthalmology
https://www.readbyqxmd.com/read/24768243/characterizing-functional-complaints-in-patients-seeking-outpatient-low-vision-services-in-the-united-states
#7
Jamie C Brown, Judith E Goldstein, Tiffany L Chan, Robert Massof, Pradeep Ramulu
PURPOSE: To characterize functional complaints of new low-vision rehabilitation patients. DESIGN: Prospective observational study. PARTICIPANTS: The Low Vision Rehabilitation Outcomes Study recruited 819 patients between 2008 and 2011 from 28 clinical centers in the United States. METHODS: New patients referred for low-vision rehabilitation were asked, "What are your chief complaints about your vision?" before their appointment...
August 2014: Ophthalmology
https://www.readbyqxmd.com/read/24472499/fear-of-falling-in-age-related-macular-degeneration
#8
Suzanne W van Landingham, Robert W Massof, Emilie Chan, David S Friedman, Pradeep Y Ramulu
BACKGROUND: Prior studies have shown age-related macular degeneration (AMD) to be associated with falls. The purpose of this study is to determine if (AMD) and AMD-related vision loss are associated with fear of falling, an important and distinct outcome. METHODS: Sixty-five persons with AMD with evidence of vision loss in one or both eyes and 60 glaucoma suspects with normal vision completed the University of Illinois at Chicago Fear of Falling questionnaire. Responses were Rasch analyzed...
2014: BMC Ophthalmology
https://www.readbyqxmd.com/read/23884309/measuring-the-patient-s-perspective
#9
EDITORIAL
Konrad Pesudovs, Julie Ratcliffe, Ecosse L Lamoureux, Mats Lundström, Robert W Massof, Gary S Rubin
No abstract text is available yet for this article.
August 2013: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/23873036/comparison-of-clinician-predicted-to-measured-low-vision-outcomes
#10
COMPARATIVE STUDY
Tiffany L Chan, Judith E Goldstein, Robert W Massof
PURPOSE: To compare low-vision rehabilitation (LVR) clinicians' predictions of the probability of success of LVR with patients' self-reported outcomes after provision of usual outpatient LVR services and to determine if patients' traits influence clinician ratings. METHODS: The Activity Inventory (AI), a self-report visual function questionnaire, was administered pre-and post-LVR to 316 low-vision patients served by 28 LVR centers that participated in a collaborative observational study...
August 2013: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/23873035/interpretation-of-low-vision-rehabilitation-outcome-measures
#11
Robert W Massof, Joan A Stelmack
PURPOSE: This article presents a theoretical interpretation of patient-reported outcomes of low-vision rehabilitation (LVR) using rating scale questionnaires and uses previously published results of LVR outcome studies to illustrate theoretical points and validate assumptions. THEORY: Patients' judgments of the difficulty they have performing tasks are interpreted as magnitude estimates of their functional reserve for each task, which is the difference between their visual ability and the visual ability demanded by the task...
August 2013: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/23851303/responsiveness-of-the-eq-5d-to-the-effects-of-low-vision-rehabilitation
#12
Alexis G Malkin, Judith E Goldstein, Monica S Perlmutter, Robert W Massof
PURPOSE: This study is an evaluation of the responsiveness of preference-based outcome measures to the effects of low vision rehabilitation (LVR). It assesses LVR-related changes in EQ-5D utilities in patients who exhibit changes in Activity Inventory (AI) measures of visual ability. METHODS: Telephone interviews were conducted on 77 low-vision patients out of a total of 764 patients in the parent study of "usual care" in LVR. Activity Inventory results were filtered for each patient to include only goals and tasks that would be targeted by LVR...
August 2013: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/23642378/improving-function-in-age-related-macular-degeneration-a-randomized-clinical-trial
#13
RANDOMIZED CONTROLLED TRIAL
Barry W Rovner, Robin J Casten, Mark T Hegel, Robert W Massof, Benjamin E Leiby, Allen C Ho, William S Tasman
PURPOSE: To compare the efficacy of problem-solving therapy (PST) with supportive therapy (ST) to improve targeted vision function (TVF) in age-related macular degeneration (AMD). DESIGN: Single-masked, attention-controlled, randomized clinical trial with outcome assessments at 3 months (main trial endpoint) and 6 months (maintenance effects). PARTICIPANTS: Patients with AMD (n = 241) attending retina practices. INTERVENTIONS: Whereas PST uses a structured problem-solving approach to reduce vision-related task difficulty, ST is a standardized attention-control treatment...
August 2013: Ophthalmology
https://www.readbyqxmd.com/read/23432845/driving-patterns-in-older-adults-with-glaucoma
#14
Suzanne W van Landingham, Chad Hochberg, Robert W Massof, Emilie Chan, David S Friedman, Pradeep Y Ramulu
BACKGROUND: The ability to drive is important for ensuring quality of life for many older adults. Glaucoma is prevalent in this age group and may affect driving. The purpose of this study is to determine if glaucoma and glaucomatous visual field (VF) loss are associated with driving cessation, limitations, and deference to another driver in older adults. METHODS: Cross-sectional study. Eighty-one glaucoma subjects and 58 glaucoma suspect controls between age 60 and 80 reported if they had ceased driving, limited their driving in various ways, or preferred another to drive...
2013: BMC Ophthalmology
https://www.readbyqxmd.com/read/23427227/a-general-theoretical-framework-for-interpreting-patient-reported-outcomes-estimated-from-ordinally-scaled-item-responses
#15
Robert W Massof
A simple theoretical framework explains patient responses to items in rating scale questionnaires. Fixed latent variables position each patient and each item on the same linear scale. Item responses are governed by a set of fixed category thresholds, one for each ordinal response category. A patient's item responses are magnitude estimates of the difference between the patient variable and the patient's estimate of the item variable, relative to his/her personally defined response category thresholds. Differences between patients in their personal estimates of the item variable and in their personal choices of category thresholds are represented by random variables added to the corresponding fixed variables...
October 2014: Statistical Methods in Medical Research
https://www.readbyqxmd.com/read/23036420/measurements-of-street-crossing-decision-making-in-pedestrians-with-low-vision
#16
Shirin E Hassan, Robert W Massof
PURPOSE: Crossing the street is an important but risky activity of daily living. If a pedestrian makes a poor street-crossing decision, the consequence could be serious injury or death. In order to advance our understanding of how visual and auditory information is sampled and processed to make street-crossing decisions, an accurate, reliable, and sensitive psychophysical and/or psychometric method of measurement of the street-crossing decision variable must first be developed and validated...
November 2012: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/22965592/the-effectiveness-of-low-vision-rehabilitation-in-2-cohorts-derived-from-the-veterans-affairs-low-vision-intervention-trial
#17
RANDOMIZED CONTROLLED TRIAL
Joan A Stelmack, X Charlene Tang, Yongliang Wei, Robert W Massof
OBJECTIVE: To evaluate the effectiveness of low-vision rehabilitation in 2 cohorts derived from the Veterans Affairs Low-Vision Intervention Trial. METHODS: In a prospective study, we observed 44 participants randomly assigned to outpatient low-vision rehabilitation who did not receive additional treatment after the trial ended at 4-month follow-up and 56 participants randomly assigned to the waiting-list control group and thereafter to standard therapy. The outcome measures included visual ability domains (reading, mobility, visual information processing, and visual motor skills) and overall visual ability estimated from difficulty ratings using the 48-item Veterans Affairs Low-Vision Visual Functioning Questionnaire...
September 2012: Archives of Ophthalmology
https://www.readbyqxmd.com/read/22958237/va-lovit-ii-a-protocol-to-compare-low-vision-rehabilitation-and-basic-low-vision
#18
RANDOMIZED CONTROLLED TRIAL
Joan A Stelmack, Xiaoyin C Tang, Domenic J Reda, Kevin T Stroupe, Stephen Rinne, Robert W Massof
PURPOSE: To compare the effectiveness of low vision rehabilitation (LVR) and basic low vision (LV) in a single masked multicentre randomised controlled trial (RCT). METHODS: Three hundred and thirty patients eligible for US. Veterans Affairs (VA) healthcare services with primary eye diagnosis (better-seeing eye) of macular disease and best-corrected distance visual acuity of 0.40-1.00 logMAR (6/15 to 6/60 or 20/50 to 20/200 Snellen) are being enrolled at seven VA facilities...
November 2012: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/22942491/low-vision-rehabilitation-in-a-nursing-home-population-the-seeing-study
#19
James Deremeik, Aimee T Broman, David Friedman, Sheila K West, Robert Massof, William Park, Karen Bandeen-Roche, Kevin Frick, Beatriz Muñoz
As part of a study of 198 residents with low vision in 28 nursing homes, 91 participated in a low vision rehabilitation intervention. Among the rehabilitation participants, 78% received simple environmental modifications, such as lighting; 75% received low vision instruction; 73% benefited from staff training; and 69% received simple nonoptical devices. Because of the cognitive and physical fragility of many nursing home residents, the authors recommend an approach that centers on training nursing home staff and improving the environment of the facilities, especially in the area of illumination...
November 2007: Journal of Visual Impairment & Blindness
https://www.readbyqxmd.com/read/22893074/baseline-traits-of-low-vision-patients-served-by-private-outpatient-clinical-centers-in-the-united-states
#20
MULTICENTER STUDY
Judith E Goldstein, Robert W Massof, James T Deremeik, Sonya Braudway, Mary Lou Jackson, K Bradley Kehler, Susan A Primo, Janet S Sunness
OBJECTIVE: To characterize the traits of low vision patients who seek outpatient low vision rehabilitation (LVR) services in the United States. METHODS: In a prospective observational study, we enrolled 764 new low vision patients seeking outpatient LVR services from 28 clinical centers in the United States. Before their initial appointment, multiple questionnaires assessing daily living and vision, physical, psychological, and cognitive health states were administered by telephone...
August 2012: Archives of Ophthalmology
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