Weight distributions of spherical and cylindrical power deviations for progressive addition lens design

2021 ◽  
Author(s):  
Huazhong Xiang ◽  
Lu Zhang ◽  
Xiaodie Zhan ◽  
Yaqiong Wang ◽  
Yunjin Zhang ◽  
...  
Keyword(s):  
Lens Design ◽  
Weight Distributions ◽  
Progressive Addition Lens

Influence of Weight Function on Progressive Addition Lens Design

2020 ◽  
Vol 49 (9) ◽  
pp. 922001-922001
Author(s):  
高健东 Jian-dong GAO ◽  
项华中 Hua-zhong XIANG ◽  
李念宁 Nian-ning LI ◽  
王成 Cheng WANG ◽  
郑刚 Gang ZHENG ◽  
...  
Keyword(s):  
Weight Function ◽  
Lens Design ◽  
Progressive Addition Lens

Satisfaction Level of Progressive Additional Lens (PALs) Wearers

2017 ◽  
Vol 2 (6) ◽  
Author(s):  
NUR ARESYA AHMAD NAJMEE
Keyword(s):  
Lens Design ◽  
Satisfaction Level ◽  
Computer Screen ◽  
Total Satisfaction ◽  
Quality Of Vision ◽  
Progressive Addition Lens ◽  
Vision Care

The number of presbyopia is increasing worldwide with highly reported on an inadequate correction which can reduce the visual satisfaction. A survey was conducted to study the level of vision satisfaction between the quality of vision and symptoms reported by progressive addition lens (PALs). Sixty questionnaires were mailed to the (PALs) wearers aged between 40 years and above from Universiti Teknologi Mara (UiTM) Vision Care. The strongest correlation was found between the quality of vision at intermediate viewing with total satisfaction on seeing grocery shelves and computer screen with p<0.001. PALs wearers’ priority and needs should be considered in selecting the appropriate lens design to be matched for required tasks. 

Proposal of Corridor Pattern to Consider in Progressive Addition Lens Design

2020 ◽  
Vol 25 (2) ◽  
pp. 99-102
Author(s):  
Byeong-Yeon Moon ◽  
Dong-Sik Yu ◽  
Sang-Yeob Kim ◽  
Hyun Gug Cho
Keyword(s):  
Lens Design ◽  
Progressive Addition Lens

scholarly journals Progressive addition lens design and the short of stature

2010 ◽  
Vol 93 (2) ◽  
pp. 109-109
Author(s):  
Yu Cui ◽  
David Wilson ◽  
Tim Thurn
Keyword(s):  
Lens Design ◽  
Progressive Addition Lens

Progressive addition lens design by optimizing NURBS surface

2011 ◽  
Author(s):  
Yen-Liang Liu ◽  
Wei-Yao Hsu ◽  
Yuan-Chieh Cheng ◽  
Guo-Dung Su
Keyword(s):  
Lens Design ◽  
Nurbs Surface ◽  
Progressive Addition Lens

scholarly journals Optical performance of progressive addition lenses (PALs) with astigmatic prescription

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
E. De Lestrange-Anginieur ◽  
C. S. Kee
Keyword(s):  
Lens Design ◽  
Optical Performance ◽  
Dimensional Error ◽  
Refractive Power ◽  
Power Profile ◽  
Progressive Addition Lenses ◽  
Progressive Addition Lens ◽  
Lens Surface ◽  
Optical Variation ◽  
Myopia Control

AbstractThe progressive addition lens (PAL) is a spectacle lens design with progressive refractive power changes across the lens surface to provide sharp vision at different viewing distances for patients with reduced accommodative strength. It has gained in popularity not just for presbyopic patients, but also patients with occupational (office, driving, or digital device) and therapeutic (e.g., myopia control) needs. However, despite the increasing prevalence of astigmatism in adults > 40 years old who rely on PAL correction, no metric is available to reflect the optical variation in PALs with astigmatic prescriptions. Based on recent studies, four novel optical metrics sensitive to variation of refractive power across the lens surface of PALs have been developed. These metrics were used to compare the optical performance of PALs of various prescriptions, designs, and manufacturers. For each lens, the refractive power profile was first measured with a Moire-deflectometry-based instrument.The data was then exported and analyzed using a two-dimensional error map for each of the four metrics. The results revealed significant impacts of astigmatic prescription, providing evidence for the usefulness of these metrics in quantifying the optical performance of PALs for patients with astigmatic prescriptions.

Hyperbolic tangential function-based progressive addition lens design

2015 ◽  
Vol 54 (35) ◽  
pp. 10404 ◽  
Author(s):  
Gufeng Qiu ◽  
Xudong Cui
Keyword(s):  
Lens Design ◽  
Progressive Addition Lens

scholarly journals Progressive addition lens design and the short of stature

2010 ◽  
Vol 93 (1) ◽  
pp. 37-38 ◽  
Author(s):  
Santos Shan-Yu Tseng ◽  
James I-Chih Chan
Keyword(s):  
Lens Design ◽  
Progressive Addition Lens

scholarly journals Satisfaction Level of Progressive Additional Lens (PALs) Wearers

2017 ◽  
Vol 2 (6) ◽  
pp. 373 ◽  
Author(s):  
Nur Aresya Ahmad Najmee ◽  
Noor Halilah Buari ◽  
Rabiatun Mujari ◽  
Muhammad Irwan Rahman
Keyword(s):  
Lens Design ◽  
Satisfaction Level ◽  
Computer Screen ◽  
Total Satisfaction ◽  
Quality Of Vision ◽  
Progressive Addition Lens ◽  
Vision Care

The number of presbyopia is increasing worldwide with highly reported on an inadequate correction, which can reduce the visual satisfaction. A survey was conducted to study the level of vision satisfaction between the quality of vision and symptoms reported by progressive addition lens (PALs). Sixty questionnaires were mailed to the (PALs) wearers aged between 40 years and above from Universiti Teknologi Mara (UiTM) Vision Care. The strongest correlation was found between the quality of vision at intermediate viewing with total satisfaction on seeing grocery shelves and computer screen with p<0.001. PALs wearers priority and needs should be considered in selecting the appropriate lens design to be matched for required tasks.

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