DESCRIPTION A 27-year-old HIV-positive untreated woman was admitted for general deterioration, fever, productive cough and peripheral lymph nodes. HIV viral load was 3.1×10 copies/ml and CD4 cell count was 30 cells/mm. CT scan showed a nodule in the right upper pulmonary lobe, multiple cervical, intrathoracic, abdominal and inguinal lymph nodes. Disseminated tuberculosis (TB) was diagnosed as s...

An iris based biometric recognition system provides identification of an individual based on a unique feature or characteristic possessed by that individual. Iris recognition is consider as the most reliable and accurate biometric identification system. In this paper we explore the performance of the iris based recognition system. We take iris image of ten different people and after segmentatio...

Four years after intraoperative floppy iris syndrome (IFIS) was first described,1 there is still no clear preference among ophthalmologists for the surgical management of these cases, according to a survey conducted last year by the ASCRS Cataract Clinical Committee.2 In fact, when asked to name their preferred single method for IFIS, the most common response (33%) was “always employ multiple s...

Aims: To develop a minimally invasive, maximally effective method to biopsy anterior segment tumours. Methods: A 25 gauge aspiration cutter (vitrector) was used to biopsy anterior segment tumours. The probe was introduced under sodium hyaluronate 1% and through a 1 mm incision. Aspiration (600 mmHg) cutting (300 cpm) was performed to obtain specimens for cytology and histopathology. Results: Di...

We report the case of a 67-year-old woman with a lens that was displaced into the vitreous cavity in one eye and ipsilateral iridoschisis. She was free from a history of ocular trauma or of heritable ocular disease. Her best-corrected visual acuity was 1.2 bilaterally and right eye showed signs of iridoschisis. The corneal endothelial cell density decreased to 1,263 cells/mm(2) in the right eye...

PURPOSE To present the management of a rare case of persistent pupillary membrane (PPM) associated with high myopia and amblyopia. CASE A 12-year-old boy presented with progressive diminution of vision in the right eye since childhood. Examination (OD) showed several fine strands of iris attached to the collarette and to the anterior lens capsule with a clump of iris pigment adherent over it....

An iris recognition system uses the iris to distinguish the identity of a person using the rich iris texture feature. To effectively remove noise and precisely segment the stable iris region is a crucial stage prior to recognition. Most noises on iris images are caused by occlusion of eyelids or eyelashes in certain areas. In this paper, we propose an iris recognition system which precisely loc...

Biometrics deals with identification of individuals based on their biological or behavioral characteristics. Iris recognition is one of the robust biometric technologies used for personal identification. Iris recognition includes image acquisition, segmentation, normalization, feature extraction and matching. Firstly, an iris image is acquired from CASIA database. Segmentation is used for the l...

The authors describe "iris-assisted," open-sky, continuous curvilinear capsulorhexis (CCC) in a triple procedure combining corneal transplantation, cataract extraction, and intraocular lens implantation. They do not use miotics or mydriatics. Patients receive oral acetazolamide (250 mg), intravenous mannitol (5 mL/kg), and Honan balloon at 30 mm Hg for 20 to 30 minutes before surgery. After tre...

The purpose of this study was to describe the surgical outcomes and safety of intracameral bevacizumab during trabeculectomy in eyes with neovascular glaucoma. Pilot study included four eyes (four patients) with refractory neovascular glaucoma submitted to fornix-based trabeculectomy with adjunctive use of bevacizumab in the anterior chamber during the procedure. Patients were previously treate...