Development and Evaluation of Clinical Protocol to Study Visual Behaviour with Progressive Addition Lenses (PAL) and Single Vision Spectacle Lenses

2000 ◽  
Author(s):  
Michel Guillon ◽  
Cecile Maissa ◽  
Steve Barlow
Keyword(s):  
Clinical Protocol ◽  
Single Vision ◽  
Visual Behaviour ◽  
Progressive Addition Lenses

A Randomized Clinical Trial of Progressive Addition Lenses versus Single Vision Lenses on the Progression of Myopia in Children

2003 ◽  
Vol 44 (4) ◽  
pp. 1492 ◽  
Author(s):  
Jane Gwiazda ◽  
Leslie Hyman ◽  
Mohamed Hussein ◽  
Donald Everett ◽  
Thomas T. Norton ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Randomized Clinical Trial ◽  
Single Vision ◽  
Progressive Addition Lenses

scholarly journals Quality of Life in Presbyopes with Low and High Myopia Using Single-Vision and Progressive-Lens Correction

2021 ◽  
Vol 10 (8) ◽  
pp. 1589
Author(s):  
Adeline Yang ◽  
Si Ying Lim ◽  
Yee Ling Wong ◽  
Anna Yeo ◽  
Narayanan Rajeev ◽  
...  
Keyword(s):  
Quality Of Life ◽  
High Myopia ◽  
Rasch Analysis ◽  
Single Vision ◽  
Refractive Status ◽  
Related Quality ◽  
Progressive Addition Lenses ◽  
The Impact ◽  
Visual Correction

This study evaluates the impact of the severity of myopia and the type of visual correction in presbyopia on vision-related quality of life (QOL), using the refractive status and vision profile (RSVP) questionnaire. A total of 149 subjects aged 41–75 years with myopic presbyopia were recruited: 108 had low myopia and 41 had high myopia. The RSVP questionnaire was administered. Rasch analysis was performed on five subscales: perception, expectation, functionality, symptoms, and problems with glasses. Highly myopic subjects had a significantly lower mean QOL score (51.65), compared to low myopes (65.24) (p < 0.001). They also had a significantly lower functionality score with glasses (49.38), compared to low myopes (57.00) (p = 0.018), and they had a worse functionality score without glasses (29.12), compared to low myopes (36.24) (p = 0.045). Those who wore progressive addition lenses (PAL) in the high-myope group (n = 25) scored significantly better, compared to those who wore single-vision distance (SVD) lenses (n = 14), with perception scores of 61.19 and 46.94, respectively (p = 0.029). Highly myopic presbyopes had worse overall QOL and functionality, both with and without glasses, compared to presbyopes with low myopia. High-myopic PAL users had a better perception outcome than SVD lens wearers. Low-myopic PAL wearers had a better QOL than SVD wearers.

Full-aperture diopter distribution measurement method for single vision and progressive addition lenses

2022 ◽  
Vol 151 ◽  
pp. 106883
Author(s):  
Tao Jin ◽  
Hongzhi Jia ◽  
Jing Li ◽  
Huazhong Xiang ◽  
Dawei Zhang ◽  
...  
Keyword(s):  
Measurement Method ◽  
Distribution Measurement ◽  
Single Vision ◽  
Progressive Addition Lenses

Aspherics in spectacle lenses

2016 ◽  
Vol 5 (5-6) ◽  
Author(s):  
Juan Carlos Dürsteler
Keyword(s):  
Broad Sense ◽  
Free Form ◽  
Refractive Errors ◽  
Optical Aberrations ◽  
Single Vision ◽  
Main Target ◽  
Progressive Addition Lenses ◽  
Free Form Surfaces

AbstractA review of the use of aspherics in the last decades, understood in a broad sense as encompassing single-vision lenses with conicoid surfaces and free-form and progressive addition lenses (PALs) as well, is provided. The appearance of conicoid surfaces to correct aphakia and later to provide thinner and more aesthetically appealing plus lenses and the introduction of PALs and free-form surfaces have shaped the advances in spectacle lenses in the last three decades. This document basically considers the main target optical aberrations, the idiosyncrasy of single lenses for correction of refractive errors and the restrictions and particularities of PAL design and their links to science vision and perception.

Roles of Trust and Cross-Cultural Miscommunication in Clinical Decision-Making

2003 ◽  
Vol 1 (2) ◽  
pp. 198-207
Author(s):  
H. Mabel Preloran ◽  
Silvia Balzano
Keyword(s):  
Medical Education ◽  
Los Angeles ◽  
Clinical Decision Making ◽  
Clinical Decision ◽  
Severe Disabilities ◽  
Cross Cultural ◽  
Emotional Engagement ◽  
Test Results ◽  
Clinical Protocol ◽  
Emotional Detachment

This paper explores the emotional world of a recent Mexican immigrant who lives in Los Angeles and is awaiting the results of the amniocentesis she has ambivalently agreed to. She is 45 years old and has given birth to two children with severe disabilities and two who are apparently normal. We focus our analysis on the woman's reactions and feelings during the nine days she spends waiting for the test results. We show that the standard prenatal genetic clinical protocol aimed at providing medical education and requiring professional neutrality and emotional detachment left the woman feeling rejected and subsequently unwilling to seek information or support from her clinicians. We find that while the intent of a protocol of neutrality is to enable patients to make informed decisions without feeling pressure from clinicians, some women want greater emotional engagement. We argue that professional neutrality can inhibit patient-clinician communication, hamper medical education, and ultimately detract from patients' ability to make informed medical choices. / El presente artículo explora el mundo emocional de Rocío, una inmigrante mexicana, quien se encuentra esperando los resultados de una amniocentesis que aceptó hacerse, a pesar de las dudas sobre la credibilidad y utilidad de la misma. Rocío, de 45 años, tenía ya otros hijos, dos con anormalidades severas y dos aparentemente sanos. Centramos nuestro análisis en los sentimientos y reacciones durante los nueve días que transcurren mientras espera el diagnóstico. En este trabajo mostramos cómo la forma de presentar la información médica puede llegar a entorpecer la toma de decisión de un paciente. El protocolo genético tiene por meta proveer información médica manteniendo una cierta distancia profesional y emocional. Estas condiciones hacen que, en nuestro estudio de caso, la paciente se sienta rechazada y sin deseos de acercarse al personal médico, ya sea en busca de apoyo emocional o información que aclararía sus dudas. Creemos que, mientras el objetivo de la neutralidad profesional es asegurar que el paciente decida con los conocimientos adecuados y, a la vez, sin sentirse presionado, algunas mujeres preferirían un mayor acercamiento emocional por parte del personal médico cuando deben decidir sobre pruebas o tratamientos. Creemos que la neutralidad profesional puede llegar a inhibir la comunicación médico-paciente, dificultar la comprensión de la información y, por último, obstaculizar la habilidad de tomar decisiones informadas por parte de los pacientes.

AUDIT RESULTS OF COMPLINCE WITH THE UNIFIED CLINICAL PROTOCOL FOR RENDERING MEDICAL AID TO PATIENTS WITH ACUTE ISCHEMIC STROKE

2019 ◽  
Vol 15 (68) ◽  
pp. 091
Author(s):  
V. D. Pariy ◽  
S. M. Hryshchuk ◽  
N. M. Korneychuk ◽  
A. M. Harlinska ◽  
L. V. Horokhova
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Clinical Protocol ◽  
Medical Aid
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