purpose: to determine normal values of standard full field electroretinography (erg) and to evaluate variation with age in an iranian population. methods: the amplitudes and implicit times of ergs from 170 normal subjects aged 1 to 80 years were recorded according to the international society for clinical electrophysiology of vision. study participants included subjects who refered to our clini...

purpose: to determine the normal values of bony inter- and intra-orbital distances in an iranian adult population by orbital ct scan. methods: the study was conducted on all adults who were referred to farabi eye hospital from march 2003 to june 2005 for ct scan ordered for complaints unrelated to craniofacial or orbital abnormalities. patients were excluded in the presence of any pathology of ...

BACKGROUND For patients with chronic liver disease, different optimal liver stiffness cut-off values correspond to different stages of fibrosis, which are specific for the underlying liver disease and population. AIMS To establish the normal ranges of liver stiffness in the healthy Chinese population without underlying liver disease. METHODS This is a prospective cross sectional study of 2,...

sleep disorders in children can lead to considerable complications. in some mental disorders including autism, it has more importance. despite the importance of sleep in children developments and lives, few researches have conducted in this area therefore this research is going to investigate sleep behavioral disorders in children and compare with normal children. research design was causal-com...

trichoderma spp. are known as efficient plant growth promoting agents. hence, enrichment of soil by appropriate population of trichoderma is useful and important for effective plant growth promote. present study aimed to investigate the plant growth promoting effects of five strains of the genus trichoderma species include: trichoderma harzianum tr6, t. harzianum t22, t. asperellum t34, t. atro...

females abortion is one of the most important sequela of genital infection with chlamydia trachomatis, mycoplasma hominis and ureaplasma urealyticum.in this study frequency of chlamydia trachomatis, mycoplasma hominis and ureaplasma urealyticum was studied in 125 females with habitual abortion by direct and indirect immunofluorescence tests and culture method and compared with 250 normal popula...

We consider the problem of selecting the normal population with the smallest coefficient of variation, which is a natural goal when the means as well as the variances of the populations are unknown and unequal. The indifference-zone approach (Bechhofer 1954) to this problem has been previously considered by Choi, Jeon and Kim (1982). We review their selection procedure and provide tables of sam...

The extent of the apparent visual field was determined for a group of 78 naïve visual observers. We find that there exists a minority (less than 10%) that is essentially veridical, but that the majority of the population experiences an apparent visual field of only about 90 degrees, thus much narrower than the dioptrics of the eye would suggest (a little over 180 degrees). This is in good accor...