نتایج جستجو برای: corneoscleral rim
تعداد نتایج: 7972 فیلتر نتایج به سال:
BACKGROUND Ocular alkali burns can be associated with a poor visual outcome. The release of collagenases and proteases after the injury leads to corneoscleral melting. The role of topical steroids in such patients is controversial as they have been postulated to exacerbate corneoscleral melting. METHODS 30 patients were reviewed retrospectively after admission to King's College Hospital with ...
An 81-year-old woman with a raised pigmented nodule over her left cornea for 7 months duration was examined. Dark conjunctival pigmentation was observed in the upper bulbar fornix conjunctiva. She had previously undergone primary surgical excision of a malignant conjunctival melanoma four years earlier. The tumor separated easily from the corneal surface, but remained slightly attached to the c...
PURPOSE To evaluate the influence of peripheral ocular topography, as evaluated by optical coherence tomography (OCT), compared with traditional measures of corneal profile using keratometry and videokeratoscopy, on soft contact lens fit. METHODS Ocular surface topography was analyzed in 50 subjects aged 22.8 years (SD ±5.0) using videokeratoscopy (central keratometry, corneal height, and sha...
A 15-year-old boy and a 21-year-old man had linear, nonmigratory corneal inflammations in the anterior stroma. The recurrent lesions extended from corneoscleral limbus to corneoscleral limbus within the palpebral aperture. They healed spontaneously with some scarring and minimal vascularization but without loss of vision. The cause could not be determined and serologic tests for syphilis were n...
A monoclonal antibody specific for the chicken alpha 1 (XII) collagen chain was used to immunolocalize type XII collagen in the corneoscleral of 17-19-day-old chicken embryos. These immunofluorescence studies localized type XII collagen around the scleral cartilages and ossicles. There was also a striking positive staining in the scleral spur and stroma of the corneolimbus beneath the external ...
AIM To describe the prognosis and complications of corneoscleral transplantation in the management of end stage eye disease. METHODS A case series is presented of 23 patients who have undergone corneoscleral transplantation (> or = 11 mm). Patients were examined for visual acuity, intraocular pressure, recurrence of disease process, epithelialisation of the graft, signs of rejection, and othe...
PURPOSE To develop a device that facilitates the procurement of corneal limbal stem cell grafts for keratolimbal allograft procedures used in the treatment of ocular surface disease associated with stem cell deficiency. DESIGN Description of device design and technique for use. METHODS The device is composed of a pedestal with a convex surface mounted to a flat platform. A corneoscleral but...
Cancer of the eye in cattle with white faces occurs less frequently in cattle with pigmented eyelids. Corneoscleral pigmentation is related to eyelid pigmentation and occurrence of lesions that may precede cancer. Objectives of this study were to assess 1) variation in the proportion of eyelid and corneoscleral pigmentation in Hereford, Bos taurus, and Bos indicus crossbreds and 2) the occurren...
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