This paper presents a method for locating the iris borders in images of the cornea. It uses a combination of a priori information, statistics and active contours to both find the iris borders and assess its own success or failure. When applied to 107 images from 11 different people with varying eye colours including light blue and dark brown the algorithm reports 7 images for which it failed to...

mon condition. It is a familial disease characterised by multiple fractures and bending of bones, often associated with blue sclera and otosclerosis. A family in which three out of four issues were affected with this malady, was investigated in September 1952 in the Orthopaedic Department of the Medical College Hospitals, Calcutta. Although isolated cases have been encountered in this departmen...

The nevus of Ota also known as "congenital melanosis bulbi" and "oculodermal melanocytosis" is a blue-gray hyperpigmentation that occurs on the face and eyes. The sclera is involved in two-thirds of cases (causing an increased risk of glaucoma). Women are nearly five times more likely to be affected than men. It is rare among Caucasian people. The nevus of Ota is congenital or acquired. Most ca...

Purpose: To explore the effect of the thalamosinusotomy ab interno, which is an experimental surgical procedure similar to sclerothalamotomy ab interno, on aqueous humor drainage. Methods: Enucleated porcine eyes were perfused with Krebs-Ringer’s physiologic solution and trypan blue, in vitro, under different constant pressures after the experimental procedure. The outflow facility and the stai...

Ocular prostheses have been used for centuries to restore patient confidence, psychosocial relationships and improve quality of life. Methodology producing accurate has improved with technological discoveries. Recently, hand painting ocular the go-to method creating life like prostheses. However, digital printing a print envelope around an acrylic prosthesis shown decrease treatment rehabilitat...

Mutation analysis as the gold standard is particularly important in diagnosis of osteogenesis imperfecta (OI) and it may be preventable upon early diagnosis. In this study, we aimed to analyze the clinical and genetic materials of an OI pedigree as well as to confirm the deleterious property of the mutation.A pedigree with OI was identified. All family members received careful clinical examinat...

OBJECTIVE Literature review of new genes related to osteogenesis imperfecta (OI) and update of its classification. SOURCES Literature review in the PubMed and OMIM databases, followed by selection of relevant references. SUMMARY OF THE FINDINGS In 1979, Sillence et al. developed a classification of OI subtypes based on clinical features and disease severity: OI type I, mild, common, with bl...

PURPOSE Muscarinic acetylcholine receptors (mAChRs) have been implicated in the control of myopia in humans and in animal models. This study was conducted to determine whether mAChRs influence the growth of the chick sclera and, if so, which mAChR subtypes are involved. METHODS Sclera and scleral chondrocytes from normal and form-deprived eyes of 10- to 14-day-old chicks were treated with a t...