Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv für klinische und experimentelle Ophthalmologie
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Graefes Arch. Clin. Exp. Ophthalmol. · Apr 2013
Overestimation of subfoveal choroidal thickness by measurement based on horizontally compressed optical coherence tomography images.
To measure the difference in subfoveal choroidal thickness between 1:1 pixel (horizontally compressed) images and 1:1 micron images in age-related macular degeneration. ⋯ Significant overestimation of the subfoveal choroidal thickness was noted when it was measured on a 1:1 pixel image. This finding suggests that the measurement of choroidal thickness should be performed based on a 1:1 micron image, especially if the measurement line is not vertical.
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Graefes Arch. Clin. Exp. Ophthalmol. · Mar 2013
Comparative StudyImpact of simulator training on resident cataract surgery.
Virtual reality surgery simulation training improves resident performance as measured by the simulator itself and wet-lab performance. This study aims to determine whether virtual surgery simulator training improves actual resident cataract surgery performance. ⋯ Virtual reality surgical simulator training mildly shortens the learning curve for the first 50 phacoemulsification cases. The less adept residents appear to benefit most.
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Graefes Arch. Clin. Exp. Ophthalmol. · Mar 2013
Urrets-Zavalia syndrome following penetrating keratoplasty for keratoconus.
Urrets-Zavalia syndrome (UZS) consists of a fixed dilated pupil associated with iris atrophy. It is a poorly understood complication following penetrating keratoplasty (PKP) for keratoconus (KC). In this work, we aim to establish the incidence, visual outcomes, and an understanding of UZS. ⋯ Elevated post-operative IOP within 24 h was a significant factor in the development of UZS. Visual function in UZS patients was unaffected. UZS patients developed longstanding mydriasis with reduced reactivity to topical pilocarpine 2 %. ICG angiography confirmed iris vessel ischemia; supporting the theory that iris ischemia resulting from occlusion of iris root vessels due to elevated IOP causes UZS. We advocate rigorous intraoperative management of ocular viscoelastic devices and aggressive postoperative IOP control in patients undergoing PKP for KC.
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Graefes Arch. Clin. Exp. Ophthalmol. · Mar 2013
Pediatric eye injuries presenting to United States emergency departments: 2001-2007.
The epidemiology of pediatric eye injuries is not well-documented. This study describes the characteristics of non-fatal eye injuries in pediatric patients (<18 years of age) presenting to United States (US) emergency departments (EDs). ⋯ This study suggests that the risk for pediatric eye injuries is highest for adolescents 15-17 years of age and at home. Further research is needed to determine risk and protective factors associated with injuries in this age group and location to design appropriate prevention strategies.
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Graefes Arch. Clin. Exp. Ophthalmol. · Mar 2013
Clinical risk management in eye outpatient surgery: a new surgical safety checklist for cataract surgery and intravitreal anti-VEGF injection.
A database study to test a new model of surgical safety checklist for eye surgery in the outpatient operating room, especially for cataract surgery and intravitreal anti-VEGF injections. ⋯ The study showed a high level of adherence to the checklist. A surgical safety checklist could improve the management of an eye surgery operating room.