E yes with small pupils present a challenge to cataract surgeons. A pupil that fails to dilate can obscure visualization during all stages of phacoemulsification, making surgery more difficult and increasing the incidence of complications such as nucleus drop, vitreous prolapse, and iris tear. Inadequate pupil dilation is often seen in patients with a history of use of miotic agents, chronic uv...

Purpose To report our diagnostic ultrasound-based approach and surgical strategy in a case of severe blunt trauma with complete hyphema, 270° iris disinsertion, and traumatic subluxated cataract. Case Report A 70-year-old male was referred to our hospital for a blunt trauma in his right eye. A complete examination revealed visual acuity consisting in light perception, a complete hyphema, and ...

In this paper, a new iris localization method for mobile devices is presented. Our system uses both intensity and saturation threshold on the captured eye images to determine iris boundary and sclera area, respectively. Estimated iris boundary pixels which have been placed outside the sclera will be removed. The remaining pixels are mainly the boundary of iris inside the sclera. Then, circular ...

How to quantify exposure to traumatic stress? Reliability and predictive validity of measures for cumulative trauma exposure in a post-conflict population Sarah Wilker*, Anett Pfeiffer, Stephan Kolassa, Daniela Koslowski, Thomas Elbert and Iris-Tatjana Kolassa Clinical & Biological Psychology, Institute of Psychology and Education, Ulm University, Ulm, Germany; Vivo International, Allensbach, G...

Pujari A, Swamy DR. BMJ Case Rep 2017. doi:10.1136/bcr-2017-222126 Description A 26-year-old male patient presented for routine ocular evaluation; visual acuity was 20/20 in each eye with +0.75 dioptre sphere. Bilateral anterior segment examination showed a clear cornea and a normal central anterior chamber depth. In the right eye towards the periphery on temporal aspect, anterior surface of th...

Intraoperative floppy iris syndrome (IFIS) was first described in 2005 (Chang & Campbell 2005; Parssinen 2005). The fullblown syndrome comprises a triad of: 1) billowing of the iris stroma in response to normal irrigation currents, 2) the floppy iris tends to prolapse through the phaco and the side port incisions, and 3) a progressive pupillary constriction during the surgical procedure. Althou...

APRIL 2010 I CATARACT & REFRACTIVE SURGERY TODAY EUROPE I 31 T he incidence of wound gape or iris prolapse after cataract extraction reportedly ranges from 0% to 1.6% with phacoemulsification and 0% to 3% with extracapsular cataract extraction.1 Contemporary cataract surgery is most commonly performed through sutureless clear corneal incisions with a wound width of 3.2 mm or less. These small w...

PURPOSE To show the utility of optical coherence tomography (OCT) for studying the anterior segment and to explain its potential advantages as compared to ultrasonic biomicroscopy (UBM). MATERIALS AND METHODS We have described the findings in 5 patients with different pathologies of the anterior segment, all of whom were studied with UBM and OCT-3 adjusted for the anterior segment. There were...

A NEW pupil expansion ring can greatly facilitate phacoemulsification in eyes with small pupils, including those with weak zonules, according to the device’s developer, Boris Malyugin MD PhD, S Fyodorov Eye Microsurgery Complex, Moscow, Russia. The pupillary ring uses the scroll principle to capture and expand the iris margin.The device is composed of 5-0 polypropylene and is square in shape. I...

PURPOSE To introduce a case of iridoschisis patient who underwent cataract surgery successfully without pupil device. METHODS A 64-year-old female who showed iridoschisis of her both eyes underwent cataract operation at her right eye without a pupillary device. The preoperative and postoperative ophthalmologic examinations including visual acuity, intraocular pressure, reaction of anterior ch...