with an increasing emphasis on security, automated personal identification based on biometrics has been receiving extensive attention. iris recognition, as an emerging biometric recognition approach, is becoming a very active topic in both research and practical applications. in general, a typical iris recognition system includes iris imaging, iris liveness detection, and recognition. this rese...

BACKGROUND Herpetic necrotizing retinitis is a well-recognized entity. A few cases of herpetic non-necrotizing retinitis were previously reported. FINDINGS We retrospectively report two cases of herpetic non-necrotizing retinopathy with a long follow-up. A 19-year-old woman presented with a bilateral diffuse occlusive retinal vasculitis, peripheral neovascularization, and no signs of retinal ...

OBJECTIVE Ocular ischemic syndrome is a rare blinding condition generally caused by disease of the carotid artery. We describe a 69-year-old female with a 50 pack-year smoking history with aortic arch syndrome causing bilateral ocular ischemic syndrome. METHODS The patient presented with progressive visual loss and temple pain. Slit lamp biomicroscopy revealed bilateral iris neovascularizatio...

IGF-1 has been associated with the pathogenesis of diabetic retinopathy, although its role is not fully understood. Here we show that normoglycemic/normoinsulinemic transgenic mice overexpressing IGF-1 in the retina developed most alterations seen in human diabetic eye disease. A paracrine effect of IGF-1 in the retina initiated vascular alterations that progressed from nonproliferative to prol...

PURPOSE To use explants of cornea and iris and ciliary body (I/CB) of experimentally manipulated eyes to determine whether loss of the capacity to suppress T-cell activation in vitro correlates with other consequences of manipulation, i.e., the migration of Langerhans cells into the central corneal epithelium, the leakiness of stromal neovessels, and the presence of axons in the cornea. METHO...

we report a 64-year-old diabetic woman who developed neovascularization of the posterior capsule 2 years after cataract surgery and intraocular lens implantation. the patient was treated with single injection of 1.25 mg of intravitreal bevacizumab (avastin) via pars plana. after one week, complete regression of the posterior capsule neovascularization was achieved allowing us to perform nd: yag...

In May 2008, a 21-year-old single, non-obese, diabetic lady was referred to our clinic for routine eye examinations. The patient had been diagnosed with diabetes mellitus three months earlier and was receiving 100 milligrams of metformin daily and 80 milligrams of gliclazide twice daily orally, consistently maintaining her blood glucose levels between 72-90 mg/dl. She had a positive family hist...

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...

The Spontaneously Diabetic Torii (SDT) rat, a nonobese type 2 diabetes model, develops severe diabetic retinopathy as result of chronic severe hyperglycemia. Although existing diabetes animal models also develop ocular complications, severe retinal lesions frequently observed in human diabetes patients such as preretinal neovascularization or retinal detachment are not found. Distinctive featur...

Neovascular glaucoma (NVG) secondary to internal carotid artery (ICA) occlusion is usually resistant to treatment. We report a case of NVG with ICA occlusion improved by intravitreal bevacizumab (IVB) injection and carotid artery stent replacement (CAS), even though we did not perform panretinal photocoagulation. A 67-year-old male with NVG noted visual loss in his left eye. Magnetic resonance ...