Developmental dyslexia emerges in childhood and is a reading disorder believed to involve language processing deficits. Reading is also a visual task but the potential role of visual processing in developmental dyslexia has been controversial. This study was a small observational study to assess the frequency of visual deficits in 29 children with developmental dyslexia compared with 33 typically developing reading children.
Single-cell sequencing technologies are filling in fine details in the catalog of life. Researchers at the University of Connecticut Health Center (UConn Health) and The Jackson Laboratory (JAX) have identified 40 subtypes of retinal ganglion cells (RGCs) along with the genetic markers and transcription factors that differentiate them.
A new study has shown that people who regularly eat oranges are less likely to develop macular degeneration than people who do not eat oranges. Researchers at the Westmead Institute for Medical Research interviewed more than 2,000 Australian adults aged over 50 and followed them over a 15-year period.
Traditional Medicare doesn't cover eyeglasses except after cataract surgery and changing the policy has been discussed. Recent estimates of eyeglass use by Medicare beneficiaries could shed light on the implications of any policy change. A new study estimates 92 percent of Medicare beneficiaries 65 or older (an estimated 40.5 million people) reported using eyeglasses for distance or near vision correction in 2015, a frequency of eyeglass use that has remained stable.
A multi-hospital collaboration led by researchers at Children's Hospital of Philadelphia (CHOP) has found a simple method of determining which premature infants should be screened for retinopathy of prematurity (ROP).
HIV-positive children in South Africa are more likely to have developmental disabilities compared to children who are HIV negative. HIV-positive children ages 4 to 6 had nearly four times the odds of delays in sitting, standing, walking, and speaking, and more than twice the odds of a hearing disability and cognitive delay compared to HIV-negative children.
Researchers have shed new light on the psychiatric and neurological problems that Ebola survivors can suffer from, and call for more specialist support for the most severely affected patients.
Nearsightedness (myopia) is a leading cause of visual impairment worldwide. A new study of about 4,700 Chinese schoolchildren suggests the rate of nearsightedness may be 20 percent to 30 percent each year from first grade onward. If such a frequency is confirmed with further testing, researchers suggest interventions to reduce the onset of nearsightedness, such as increasing the time spent outdoors, should be initiated in primary schools.
An analysis of recent high-quality research reveals that diet may affect individuals' risks related to the development and progression of age-related macular degeneration (AMD). The findings are published in Clinical & Experimental Ophthalmology.
The posterior parietal cortex plays a crucial role in allowing the mammalian brain to turn visual information (such as a green traffic light), into motion (such as stepping on the gas), researchers at MIT's Picower Institute found in a new study.