uncontrolled hypertension is well- known to give rise to systemic complications involving multiple central organs. artherosclerosis leads to damage of the retinal vessels wall, contributing to venous stasis, thrombosis and finally, occlusion. retinal vein occlusions compromise vision through development of ischaemic maculopathy, macular oedema, and rubeotic glaucoma. laser photocoagulation rema...

purpose : to report a rare case of large vascularized astrocytoma on optic disc. case report : a 12-year-old boy with history of decreased vision in the left eye since 5-6 months ago was referred to the ocular oncology service at rassoul akram hospital with provisional diagnosis of retinoblastoma. on examination, visual acuity was counting fingers at 50 cm, and a 3+ relative afferent pupillary ...

BACKGROUND The term "green cataract" appears in the literature of the 16th century and at the same time it was mentioned that couching a green cataract would not restore the vision. PATIENTS The cases of a 54-year-old women and a 74-year-old man with green cataract and the diagnosis of vitreous hemorrhage and end stage rubeosis iridis with absolute glaucoma and no light perception is recorded...

Uncontrolled hypertension is well- known to give rise to systemic complications involving multiple central organs. Artherosclerosis leads to damage of the retinal vessels wall, contributing to venous stasis, thrombosis and finally, occlusion. Retinal vein occlusions compromise vision through development of ischaemic maculopathy, macular oedema, and rubeotic glaucoma. Laser photocoagulation rema...

The evolution and characteristics of diabetic rubeosis were studied in 33 eyes, and the following vascular abnormalities were found: (1) Dilated leaking capillaries around the pupil; (2) irregular or slow filling of the radial arteries; (3) superficial arborising newly formed vessels, usually starting in the chamber angle; and (4) dilatation and leakage of the radial vessels either before or af...

PURPOSE To report a case of anterior segment ischemia (ASI) with rubeosis iridis after circular buckling surgery in a highly-myopic patient which was successfully treated with a second intravitreal bevacizumab injection. METHODS Case report and review of the literature. DISCUSSION ASI is a rare but potentially serious complication of posterior segment surgery. Finally it leads to neovascula...

PURPOSE To estimate the etiology and features of the eyes with rubeosis iridis among Korean patients. MATERIALS AND METHODS This study is a retrospective review of 533 Korean patients with rubeosis iridis who visited an eye hospital in Seoul, Korea. We defined rubeosis iridis as visible blood vessels on the iris surface detected during a slit-lamp examination. All cases were reviewed for age ...

AIMS To investigate the predictive value of the cone b-wave implicit time in the photopic compared with the scotopic 30 Hz flicker ERG for rubeosis in central retinal vein occlusion. METHODS 44 patients with a central retinal vein occlusion were examined with full field electroretinogram (ERG). RESULTS The average implicit time in the photopic 30 Hz flicker ERG in patients who developed rub...

Introduction IT is well known to practising ophthalmologists that ephedrine is less effective as a mydriatic in subjects with deeply coloured irides than in those with light irides. This observation was first reported by Howard and Lee (1927), who stated that there was a distinct difference between Caucasians with light coloured irides and Chinese with dark irides, the former responding to smal...

A longstanding issue in biomedical research concerns the biophysical factors affecting the color diversity of the human irides and its connection with ocular diseases. Although the pigmentation and morphological characteristics of heavily and moderately pigmented irides have been extensively discussed in the literature, similar studies are scarce for lightly pigmented irides. We present compute...