scholarly journals Multi-Axial Stage for a Stereo Dissecting Microscope

2006 ◽  
Vol 14 (5) ◽  
pp. 48-49
Author(s):  
Zhaojie Zhang
Keyword(s):  
Digital Imaging ◽  
Imaging Techniques ◽  
Depth Of Focus ◽  
Extended Depth Of Focus ◽  
Structure Observation ◽  
Dedicated Hardware

The stereo dissecting microscope is a widely used instrument for macro-structure observation and documentation. The emergence of digital imaging, along with sophisticated imaging software, makes this macro-imaging more efficient. It also makes possible certain special imaging modes that are difficult to accomplish with traditional (film) imaging, such as extended depth of focus imaging ( EDF), automatic mont aging, etc. These special imaging techniques often require dedicated hardware on the microscope, such as a motorized stage.

Digital imaging and quantitative image analysis of polymer blends

1996 ◽  
Vol 54 ◽  
pp. 170-171
Author(s):  
Xiao Zhang
Keyword(s):  
Digital Imaging ◽  
Imaging Techniques ◽  
Imaging Systems ◽  
Polymer Science ◽  
Key Factors ◽  
Multiple Imaging ◽  
Quantitative Image ◽  
Digital Imaging Systems ◽  
Multi Phase ◽  
Network Technologies

Polymer microscopy involves multiple imaging techniques. Speed, simplicity, and productivity are key factors in running an industrial polymer microscopy lab. In polymer science, the morphology of a multi-phase blend is often the link between process and properties. The extent to which the researcher can quantify the morphology determines the strength of the link. To aid the polymer microscopist in these tasks, digital imaging systems are becoming more prevalent. Advances in computers, digital imaging hardware and software, and network technologies have made it possible to implement digital imaging systems in industrial microscopy labs.

scholarly journals Comparison of trifocal or hybrid multifocal-extended depth of focus intraocular lenses: a systematic review and meta-analysis

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yueyang Zhong ◽  
Kai Wang ◽  
Xiaoning Yu ◽  
Xin Liu ◽  
Ke Yao
Keyword(s):  
Systematic Review ◽  
Visual Acuity ◽  
Meta Analysis ◽  
Visual Quality ◽  
Intraocular Lenses ◽  
Depth Of Focus ◽  
Refractive Lens Exchange ◽  
Extended Depth Of Focus ◽  
Refractive Lens ◽  
Near Visual Acuity

AbstractThis meta-analysis aimed to evaluate the clinical outcomes following implantation of trifocal intraocular lenses (IOLs) or a hybrid multifocal-extended depth of focus (EDOF) IOL in cataract or refractive lens exchange surgeries. We examined 13 comparative studies with bilateral implantation of trifocal (898 eyes) or hybrid multifocal-EDOF (624 eyes) IOLs published through 1 March 2020. Better uncorrected and corrected near visual acuity (VA) were observed in the trifocal group (MD: − 0.143, 95% CI: − 0.192 to − 0.010, P < 0.001 and MD: − 0.149, 95% CI: − 0.217 to − 0.082, P < 0.001, respectively), while the hybrid multifocal-EDOF group presented better uncorrected intermediate VA (MD: 0.055, 95% CI: 0.016 to 0.093, P = 0.005). Trifocal IOLs were more likely to achieve spectacle independence at near distance (RR: 1.103, 95% CI: 1.036 to 1.152, P = 0.002). The halo photic effect was generated more frequently by the trifocal IOLs (RR: 1.318, 95% CI: 1.025 to 1.696, P = 0.031). Contrast sensitivity and subjective visual quality yielded comparable results between groups. Trifocal IOLs demonstrated better performance at near distance but apparently led to more photic disturbances. Our findings provided the most up-to-date and comprehensive evidence by comparing the benefits of advanced IOLs in clinical practice.

Quality of view through extended depth of focus intraocular lens in a model eye

2021 ◽  
Author(s):  
Makoto Inoue ◽  
Nina Teresa Aicher ◽  
Yuji Itoh ◽  
Hiroko Bissen-Miyajima ◽  
Akito Hirakata
Keyword(s):  
Intraocular Lens ◽  
Depth Of Focus ◽  
Extended Depth Of Focus

Extended depth of focus as a process of pupil manipulation

2005 ◽  
Author(s):  
Sandro Förster ◽  
Herbert Gross ◽  
Frank Höller ◽  
Lutz Höring
Keyword(s):  
Depth Of Focus ◽  
Extended Depth Of Focus

Diffractive infrared lens with extended depth of focus

2007 ◽  
Vol 46 (1) ◽  
pp. 018002 ◽  
Author(s):  
Zhiqiang Liu
Keyword(s):  
Depth Of Focus ◽  
Extended Depth Of Focus

Enhanced Monofocal Extended Depth of Focus IOL With a Diffractive Surface Design

2021 ◽  
Vol 37 (9) ◽  
pp. 595-600
Author(s):  
Pedro Tañá-Sanz ◽  
María Dolores Rodríguez-Carrillo ◽  
Belén Elvira-Giner ◽  
María Ruiz-Santos ◽  
Robert Montés-Micó ◽  
...  
Keyword(s):  
Depth Of Focus ◽  
Surface Design ◽  
Extended Depth Of Focus

Changes in Optical Quality Induced by Tilt and Decentration of a Trifocal IOL and a Novel Extended Depth of Focus IOL in Eyes With Corneal Myopic Ablations

2021 ◽  
Vol 37 (8) ◽  
pp. 532-537
Author(s):  
Javier Ruiz-Alcocer ◽  
Irene Martínez-Alberquilla ◽  
Laureano A. Rementería-Capelo ◽  
Pablo De Gracia ◽  
Amalia Lorente-Velázquez
Keyword(s):  
Optical Quality ◽  
Depth Of Focus ◽  
Extended Depth Of Focus ◽  
Trifocal Iol
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