A 10-year-old Labrador Retriever who had been undergoing therapy for a recurrent hemangiopericytoma of the right flank presented to the Kansas State University Ophthalmology service for evaluation of a painful left eye. Examination revealed secondary glaucoma and irreversible blindness of the affected eye and multifocal chorioretinal lesions in the fellow eye. Therapeutic and diagnostic enuclea...

The present study examined spatial learning in goldfish using a new apparatus that was an open-field circular pool with latticed holes. The subjects were motivated to reach the baited hole. We examined gustatory cues, intramaze cues, the possibility that the subject could see the food , etc. In Experiment 1, the position of the baited hole was changed for each trial in a random searching group,...

PREVIOUS STUDIES HAVE SHOWN that for each rapid eye movement of lowvoltage fast sleep there is a corresponding monophasic wave of 100-140 msec. in the lateral geniculate body of the cat (8). These waves do not depend upon the presence of the retina or the eye muscle afferents (5, 22). In fact, follow ,ing either retinal photocoagulation of the optic disc or enucleation of the eyes, these genicu...

BACKGROUND Retinoblastomas account for 4% of malignancies in children, 1-2% of which are diffuse infiltrating retinoblastomas. Diffuse anterior retinoblastoma is rare and does not involve the retina. Here, we report on a diffuse anterior retinoblastoma with large sarcoidosis-like nodules on the iris that were responsive to anti-inflammatory therapy. CASE We present a 6-year-old girl who had a...

Enucleation or the surgical removal of an eye can generally be considered as a model for nerve deafferentation. It provides a valuable tool to study the different aspects of visual, cross-modal and developmental plasticity along the mammalian visual system(1-4). Here, we demonstrate an elegant and straightforward technique for the removal of one or both eyes in the mouse, which is validated in ...

BACKGROUND Retinoblastoma is considered the most common intraocular malignancy in childhood, comprising 4% of all pediatric cancers. Management of retinoblastoma has evolved over the past two decades and intra-ophthalmic artery chemotherapy has emerged as a new modality of globe-conserving treatment with excellent results. This treatment achieves effective tumor reduction by delivering localize...

A 26-year-old Negro male schizophrenic is described with severe bilateral orbital injuries following attempted self-enucleation. Owing to his psychosis there was difficulty in obtaining a visual acuity and in establishing the cause of his fixed, dilated pupils. ACT scan showed bilateral orbital oedema, with surgical emphysema and haemorrhage. The visual evoked potential (VEP) was present in the...

Due to various reasons, a person who is missing one eye may experience psychological as well excruciating suffering. Enucleation and evisceration surgery are the most often used methods remove sick or injured eye. The patient fitted with bespoke implant into orbital tissues after surgeon removes In order keep socket from looking hollow depressed, this replaces volume. Once has stabilized, prost...

To our knowledge, there is no report of dermis-fat graft (DFG) implant for orbital reconstruction from Oman. We hereby presented a case report of a 10-year-old boy with a blind and painful left eye secondary to penetrating eye injury presented with implant extrusion following evisceration with a polymethyl methacrylate implant. The evisceration procedure was converted to enucleation and a DFG o...

A case of metastatic tapioca melanoma of the iris in a 12-year-old girl is reported. The patient had heterochromia, a red painful eye, and was treated for iritis with secondary glaucoma. In the course of 5 months iris lesions with the clinical appearance of tapioca pudding developed, and biopsy disclosed a melanoma. The eye was immediately enucleated, and pathological examination showed a melan...