نتایج جستجو برای: keratoglobus
تعداد نتایج: 79 فیلتر نتایج به سال:
Purpose: To determine if the mean horizontal white-towhite (WTW) corneal diameter, measured intraoperatively with calipers, of a population of cataract surgery patients differs from the currently accepted normal WTW range of greater than 11.0 and less than 13.0 mm. In addition, we compared manual caliper measurements with those with IOLMaster. Setting: Cincinnati Eye Institute, Cincinnati OH. D...
Megalocornea-mental retardation syndrome (MMR) is a rare autosomal recessive disorder presenting with megalocornea, mental and motor retardation, hypotonia, seizures, short stature, and characteristic dysmorphic traits (MIM 249310). We present a new case in order to delineate with more accuracy the typical phenotype.
Biometric study in a series of 11 affected males provides characteristic findings. The patients present with a large cornea with short radius, very deep anterior chamber depth (AC depth) exceeding the normal mean value of plus 2 SD, and a short vitreous length. Calculation of the postlimbal depth, a method applied in this study to obtain information about positioning of the iris and the lens, r...
We describe a rare case of Dandy-Walker syndrome malformation and its ocular alterations. A female child, aged 1 year and 9 month, with central nervous system alterations (Dandy-Walker syndrome), associated with low visual acuity, megalocornea (13 mm diameter in right eye and 13.5 mm in the left), fundoscopy with 0.7 optic papilla excavation in both eyes (BE) and temporal paleness in BE, intrao...
The early development of lens opacities and lens subluxation are the most common causes of vision loss in patients with anterior megalophthalmos (AM). Cataract surgery in such patients is challenging, however, because of anatomical abnormalities. Intraocular lens dislocation is the most common postoperative complication. Patients with AM also seem to be affected by a type of vitreoretinopathy t...
Purpose. With this report we describe ultrasound biomicroscopic (UBM) findings in a patient with anterior megalophthalmos before and after undergoing phacoemulsification with posterior chamber intraocular lens implantation. Methods. Phacoemulsification was carried out for nuclear sclerosis in both eyes of a patient diagnosed with anterior megalophthalmos. The patient was subjected to detailed o...
Chordin-Like 1 (CHRDL1) mutations cause non-syndromic X-linked megalocornea (XMC) characterized by enlarged anterior eye segments. Mosaic corneal degeneration, presenile cataract and secondary glaucoma are associated with XMC. Beside that CHRDL1 encodes Ventroptin, a secreted bone morphogenetic protein (BMP) antagonist, the molecular mechanism of XMC is not well understood yet. In a family with...
We describe a 36-year-old female who suffered from presenile cataract (nuclear sclerosis and posterior subcapsular opacity, with more-severe disease in the right eye than in the left) and report the use of some ophthalmologic examinations to evaluate the anatomic structures and visual functions of both eyes. Slit-lamp biomicroscopy showed increasing horizontal and vertical corneal diameters (14...
The Drosophila genes eyeless, eyes absent, sine oculis and dachshund cooperate as components of a network to control retinal determination. Vertebrate homologues of these genes have been identified and implicated in the control of cell fate. We present the cloning and characterization of mouse Dach2, a homologue of dachshund. In situ hybridization studies demonstrate Dach2 expression in embryon...
A 23 years old female presented with recurrent episode of left hemiparesis for 6 months. Each episode lasted for 10 to 20 min at interval of 15 to 20 days. These episodes of weakness were not associated with any seizure like activity, unconsciousness or other focal neurological deficit. Three days back patient had recurrent left sided focal motor seizure with secondary generalization. She had p...
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