purpose: to determine the prevalence of ocular manifestations in marfan’s syndrome. methods: this cross-sectional study was performed on 43 patients referred to ophthalmology clinics of yazd medical university over 27 months. common ocular manifestations of marfan’s syndrome including lens dislocation, corneal disorders, retinal conditions, glaucoma were evaluated. results: the study included 2...

From a study of a large number of brothers and sisters suffering from concomitant squint, the following data were obtained: (1) 42-9% of the patients showed congenital strabismus. (2) In 96-5% of the sibs strabismus was of the same type. (3) The presence of a significant refractive error occurred in 82-8% of the patients. (4) In all twins strabismus appeared at the same age in both twins, and t...

Background: Cerebral palsy is a condition usually associated with treatable ocular pathologies such as strabismus. Objectives: 1. To observe and estimate the prevalence of various types of strabismus in children with cerebral palsy 2. To estimate the strength of association between the presences of squint and birth weight, and squint and gestational age of the child. Materials and Methods: This...

Forward-looking automotive radars can sense long-distant targets to enable early warning, but the lateral resolution is limited. Synthetic aperture radar (SAR) techniques achieve very high azimuth cannot resolve in forward direction. As a trade-off, squint-forward-looking SAR (SFL-SAR) perform 2D imaging on distant area squint moving direction, providing both and warning. In this paper, we anal...

profound bradycardia during eye surgery is a potentially serious event. in clinical practice oculo-cardiac reflex (ocr) is most often encountered during squint surgery. the objective of this study was to assess the occurrence of ocr and prove the effect of ketamine as an induction drug and anticholinergic premedication (atropine) to prevent ocr. this study comprised 90 patients (aged 4-10 years...

This paper presents a new approach for the squint-mode spotlight SAR imaging. Like the frequency scaling algorithm, this method starts with the received signal dechirped in range. According to the geometry for the squint mode, the reference range of the dechirping function is defined as the range between the scene center and the synthetic aperture center. In our work, the residual video phase i...

Cycloplegic refraction of 1-year-old children is technically possible and is acceptable to mothers as a method for screening children for visual defects. The range of refractions found in a sample of 186 1-year-old children is reported. Prediction of which children are significantly at risk for squint and/or amblyopia is possible on the basis of refractions at age 1 year according to the criter...