Engineering solutions and synthesis of optics for visualization systems of light microscopes

2018 ◽  
Author(s):  
Dmitry N. Frolov ◽  
Olga A. Vinogradova ◽  
Alexey D. Frolov
Keyword(s):  
Visualization Systems

Heads-up 3D eye surgery: Safety outcomes and technological review after 2 years of day-to-day use

2021 ◽  
pp. 112067212110128
Author(s):  
Claudia Del Turco ◽  
Giuseppe D’Amico Ricci ◽  
Marco Dal Vecchio ◽  
Caterina Bogetto ◽  
Edoardo Panico ◽  
...  
Keyword(s):  
Cataract Surgery ◽  
Case Series ◽  
Depth Of Field ◽  
Procedural Complication ◽  
Long Time ◽  
Procedural Complications ◽  
Resolution Imaging ◽  
Visualization Systems ◽  
3D Surgery

Background: 3D heads-up visualization systems are aimed to improve the surgical experience by providing high-resolution imaging. Objective of our study is to analyze, over a long-time span, the grade of satisfaction and safety of day-to-day 3D surgery compared to standard surgery and to investigate the technical distinctiveness between the heads-up systems currently in use. Methods: In this retrospective observational case series. we reviewed all surgical records of our ophthalmology-dedicated operatory rooms since the arrival of 3D heads-up viewing system, in November 2017. In particular, we compared the procedural complications of 3D-equipped operatory room (3DR) with the standard microscope operatory room (2DR). Moreover, a satisfaction questionnaire was administered to those surgeons shifting on both rooms to test their preferences on seven specific parameters (comfort, visibility, image quality, depth perception, simplicity of use, maneuverability and teaching potential). Results: 5483 eye surgeries were considered. 2777 (50.6%) were performed in 3DR and 2706 (49.3%) in 2DR. Procedural complication rate was comparable in 3DR and 2DR, also when considering different subtypes of surgery. Twelve surgeons (100% of our surgery team) participated in our satisfaction survey, expressing highest satisfaction score for 3D when applied in retina surgery. For cataract surgery, 3D scored best in all the parameters except for facility in use and depth of field perception. Conclusion: Long-term day-to-day use of 3D heads-up visualization systems showed its safety and its outstanding teaching potential in all ophthalmic surgical subtypes, with higher surgeons confidence for retina and cataract surgery.

Stereoscopic Visualization in Endoscopic Surgery: Problems, Benefits, and Potentials

1997 ◽  
Vol 6 (2) ◽  
pp. 198-217 ◽  
Author(s):  
Cletus von Pichler ◽  
Klaus Radermacher ◽  
Wieland Boeckmann ◽  
Günter Rau ◽  
Gerhard Jakse
Keyword(s):  
Visual Perception ◽  
Endoscopic Surgery ◽  
New Technology ◽  
Field Studies ◽  
3D Video ◽  
Video Endoscopy ◽  
Starting Point ◽  
Video Systems ◽  
Visualization Systems ◽  
Stereoscopic Visualization

In recent years the application of 3D video endoscopic systems in clinical routine, especially in the field of endoscopic surgery, has increased steadily. The number of 3D video endoscopic systems used in the operating theatre today is obviously lower than the number of established traditional 2D video endoscopic systems. The hesitant application of the new technology can be mainly explained by the lack of evaluation of its influence on the surgical procedure and on patient benefit as well as by the need for specific economic analysis. The starting point for our investigations was to analyze the influence of 3D video endoscopy on endoscopically guided manipulations in general. In order to achieve quantitative statements we performed laboratory experiments using human factors analyzing methods. In the next step we performed clinical field studies of the application of 3D video endoscopic systems for a side-by-side comparison of 2D and 3D systems. These studies showed that the use of 3D video endoscopy has an improving influence on endoscopically guided surgical manipulations as well as on the intraoperative procedures. We also found that spatial visual perception of stereoscopic images of 3D video systems may cause problems for some users. For the validation of stereoscopic visualization systems we additionally studied the influence of isolated technical, optical, and physiological parameters on visual perception as well as on transposition into visually guided manipulations. Detailed results of these investigations concerning the influence of 3D video endoscopy on binocular perception are presented.

Design criteria for ultrasonic visualization systems

Ultrasonics ◽  
1964 ◽  
Vol 2 (1) ◽  
pp. 29-38 ◽  
Author(s):  
G. Kossoff ◽  
D.E. Robinson ◽  
C.N. Liu ◽  
W.J. Garrett
Keyword(s):  
Design Criteria ◽  
Visualization Systems

Exciplex Fluorescence Visualization Systems for Pre-Combustion Diagnosis of an Automotive Gasoline Engine

1996 ◽  
Author(s):  
Jong U. Kim ◽  
Brage Golding ◽  
Harold J. Schock ◽  
Philip Keller ◽  
Daniel G. Nocera
Keyword(s):  
Gasoline Engine ◽  
Automotive Gasoline ◽  
Visualization Systems ◽  
Exciplex Fluorescence
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