Dual view capsule endoscopic lens design

An endoscopic capsule robot

A number of unique challenges arise in fabricating and assembling complex mechanisms at the meso-scale (hundreds of microns to centimetres). In general, for a complex multi-part mechanism at this length scale, no single machining technique can produce all the necessary parts—or often even a single individual part. Towards developing a comprehensive set of ‘best practices’ for combining multiple...

Composition of ox lens capsule.

Electron Microscopic Study of Pseudo-exfoliation of the Lens Capsule. I. Lens Capsule and Zonular Fibers.

Considerable controversy has arisen as to the nature and origin of the blue-gray flecks seen in the anterior segment of the eye in so-called pseudo-exfoliation of the lens capsule. An electron microscopic study has been carried out in an attempt to clarify this problem and Part I of this work deals with the findings in the lens and lens capsule. The filamentous nature of the deposit is confirme...

Effect of lens extraction in pseudoexfoliation of the lens capsule.

It is a matter of considerable clinical interest whether removal of the lens causes regression of pseudoexfoliation of the lens capsule. Before the paper by Dvorak-Theobald (I954), pseudoexfoliation of the lens capsule was often confused with true exfoliation, and it was suggested that lens extraction caused the condition to disappear (Irvine, I940; Gradle and Sugar, I947). After this paper app...

Impacted microfilaria in the lens capsule.