Increment Threshold Functions in Retinopathy of Prematurity
نویسندگان
چکیده
منابع مشابه
Increment Threshold Functions in Retinopathy of Prematurity
PURPOSE To assess scotopic background adaptation in subjects with a history of preterm birth and retinopathy of prematurity (ROP). Retinopathy of prematurity is known to have long-term effects on rod photoreceptor and rod mediated postreceptor retinal function. METHODS Rod-mediated thresholds for detection of 3° diameter, 50 ms stimuli presented 20° from fixation were measured using a spatial...
متن کاملRod-mediated increment threshold functions in infants.
PURPOSE To obtain and analyze scotopic increment threshold functions to test the hypothesis that rod photoreceptor immaturity accounts for the elevation of infants' over controls' dark-adapted thresholds and elevation of parafoveal over peripheral thresholds in infants. METHODS Using a preferential looking method, thresholds for detection of 2(o), 50 msec, blue stimuli presented 10(o) (parafo...
متن کاملrisk factors evaluation of threshold retinopathy of prematurity
purpose: this study aimed to evaluate risk factors associated with threshold retinopathy of prematurity (rop) in premature infants referred to farabi eye hospital during 2008-2009. since blindness and sever visual impairments will occur in a high percentage of infants stricken with threshold retinopathy, we intended to examine relationship between demographic factors and threshold retinopathy i...
متن کاملCost-effectiveness of treatment for threshold retinopathy of prematurity.
OBJECTIVE Retinopathy of prematurity (ROP) is a leading cause of adverse visual outcomes in premature infants. Both laser photocoagulation and cryotherapy have been demonstrated in clinical trials to be efficacious in reducing the incidence of visual loss occurring secondary to threshold ROP. Visual data recently have become available concerning the long-term clinical efficacy of both treatment...
متن کاملRetinopathy of Prematurity
The incidence of ROP varies with birth weight but it has been reported to be approximately 50-70% in infants whose weight is less than 1250g at birth. The more premature the infant, the more likely ROP is to develop [1]. Furthermore, an observational study from United Kingdom found that the birth weight of infants from highly developed countries was 737-763g compared with 903-1527g in less-deve...
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ژورنال
عنوان ژورنال: Investigative Opthalmology & Visual Science
سال: 2016
ISSN: 1552-5783
DOI: 10.1167/iovs.16-19294