PURPOSE Dystrobrevin is a newly discovered dystrophin-associated protein with multiple sites for phosphorylation on tyrosine residues. In the present study, the cellular distribution and subcellular localization of dystrobrevin were examined in the adult rat retina, cornea, lens, iris, ciliary body, and cultured Müller cells. METHODS Immunoblot analysis, confocal laser scanning microscopy, an...

purpose: to demonstrate an approach to the problems of cataract surgery in extensive iridoschisis methods: four eyes of 2 patients with extensive iridoschisis had cataract surgery by the same surgeon using the techniques that resembled techniques for phacoemulsification in intraoperative floppy iris syndrome (ifis). we used low flow parameters on phacoemulsification, used super-cohesive ophthal...

Localization of substance P (SP)-like immunoreactivity in the anterior eye segment of the squirrel was examined immunohistochemically. The present study demonstrates a dense network of SP-positive fibers in the ciliary body, particularly in the muscle layers, and several SP-positive fibers in the iris, in addition to scattered SP-positive fibers in the cornea. These facts strongly suggest that ...

A new iris recognition method for mobile phones based on corneal specular reflections (SRs) is discussed. We present the following three novelties over previous research. First, in case of user with glasses, many noncorneal SRs may happen on the surface of glasses and it is very difficult to detect genuine SR on the cornea. To overcome such problems, we propose a successive on/off dual illumina...

ii ACKNOWLEDGEMENTS iii APPROVAL SHEET iv SUBMISSION SHEET v DECLARATION vi LIST OF TABLES x LIST OF FIGURES xi LIST OF ABBREVIATIONS xiii CHAPTER 1.0 INTRODUCTION 1 1.1 Background 1 1.2 Motivation 2 1.3 Scope of Work 3 1.4 Objective 4 1.5 Thesis Outline 5 2.0 LITERATURE REVIEW 7 2.1 Image Preprocessing 7 2.1.1 Iris Localization 8 2.1.1.1 Integro-differential operator 8 2.1.1.2 Hough Transform ...

To reduce the influence of the eyelid for the iris recognition rate, an eyelid detection algorithm for the iris recognition is proposed. The grayscale morphological operations are employed to remove the interference of the eyelash and the light spot to the eyelid region. The points of the minimum grayscale value of each column in the eyelid region are extracted as edge points. The least squares...

In clinical practice, photophobia resulting from persistent mydriasis may be associated with dysfunction of ocular parasympathetic nerves or primary iris lesions. We encountered a 5-year-old Miniature Dachshund and a 7-year-old Shih Tzu with mydriasis, abnormal pupillary light reflexes, and photophobia. Except for sustained mydriasis and photophobia, no abnormalities were detected on general ph...

The Security has become a main problem of concern among the people. Biometrics is robotic method of identifying a person based on physiological or behavioural uniqueness. Threat starts while an useless person tries to obtain access. A person verification system localize facial landmarks and extracts biometrical features for face authentication. This includes image acquirement, segmentation, nor...

The authors describe the first case of eye amelanotic cellular blue nevus reported in literature and discuss the main differential diagnosis.