purpose : the aim of this study was to determine indications of keratoplasty during 7 years (1999–2006) in emam-rreza and vali-asr teaching hospitals of birjand university of medical sciences. methods : medical records of all patients who underwent penetrating keratoplasty (pk) in teaching hospitals of birjand university of medical sciences from 1999 to 2006 were investigated retrospectively. t...

A repeated cross-sectional research design was used in this study to compare propulsion biomechanics on a newly developed wheelchair simulator to overground natural propulsion. Seventeen individuals (15 men and 2 women) with spinal cord injury between T4 and T12 completed two 20-meter propulsion trials on a tiled surface and two 1-minute propulsion sessions on the simulator. The main outcome me...

OBJECTIVE This study aims to investigate the biomechanical effect of posterior cruciate ligament (PCL) rupture on lateral meniscus. METHOD The stresses of anterior horn, caudomedial part and posterior horn of lateral meniscus in cadaveric knees were recorded when the knee joints were loaded 200 to 1000 N at 0, 30, 60 and 90° of flexion. Twelve knees were tested before PCL transection (intact ...

purpose : to report a case of recurrent corneal intrastromal cyst containing lymph fluid case report : a 13-year-old girl presented with recurrent cyst of the left cornea, which had been drained three years before, but had gradually recurred. the cyst was successfully drained. histologic examination, cytologic analysis, and protein electrophoresis were performed on the cyst fluid. histopatholog...

Running biomechanics play an important role in the development of injuries. Performing a running biomechanics analysis on injured runners can help to develop treatment strategies. This article provides a framework for a systematic video-based running biomechanics analysis plan based on the current evidence on running injuries, using 2-dimensional (2D) video and readily available tools. Fourteen...

This paper describes a virtual marine ecosystem inhabited by realistic artificial life that emulates the appearance, movement, and behavior of real fishes. Each artificial fish is an autonomous agent in a simulated physical world. It has (i) a three-dimensional body with internal muscle actuators and functional fins, which deforms and locomotes in accordance with biomechanic and hydrodynamic pr...

purpose: to evaluate the correlation between corneal power and corneal horizontal white to white diameter in myopic patients scheduled for lasik surgery. methods: overall, in 840 eyes of 420 myopic subjects scheduled for lasik, horizontal white to white diameter and mean corneal power were obtained using orbscan ii. pearson correlation test and regression analysis were used to detect any correl...