More than 40 million people worldwide are blind, and many of them reach this condition after many years of slow and progressive retinal degeneration. The development of sophisticated prostheses or new light-responsive elements, aiming to replace the disrupted retinal function and to feed restored visual signals to the brain, has provided new hope. However, very little is known about whether the brain of blind people retains residual capacity to process restored or artificial visual inputs. The perceptual and brain responses of a group of patients were assessed before and after the implantation of a prosthetic implant that senses visual signals and transmits them to the brain by stimulating axons of retinal ganglion cells.
After Blindness, The Adult Brain Can Learn to See Again
Professional Development and Research Institute on Blindness | Home
If you are colorblind, you have difficulty distinguishing certain colors, such as blue and yellow or red and green. Color blindness or, more accurately, color vision deficiency is an inherited condition that affects males more frequently than females. Much more rarely, a person may inherit a trait that reduces the ability to see blue and yellow hues. This blue-yellow color deficiency usually affects men and women equally.
Ohio Vision Programs
Department of Education. Adult learners with visual impairments can be identified as totally or legally blind, partially sighted or having "low vision" and may face certain challenges in literacy and academic development. They may lack important access to regularly printed educational materials or media technology. Persons with visual impairments might utilize computer technology via another one of their senses, such as hearing or touch or other modifications of their computer displays. Agencies are responsible under the Adults with Disabilities Act ADA to provide reasonable accommodations and modifications to enable their employees with visual impairments to become effective, successful learners.
Through our various health education initiatives, Prevent Blindness Texas educates specific populations about vision, eye health and safety. Among some of the education and awareness programs currently available include our Diabetic Eye Disease Educator Program , which teaches outreach personnel and allied health professionals about issues related to diabetes and the eye; the Healthy Eyes Educational Series , which uses a series of education modules to educate about various age-related eye conditions. Are you a school teacher, community health educator, outreach worker, public health professional, community or senior center program director, occupational health nurse, safety director, or employer looking for lunch-and-learn educational material on eye health and safety or a school nurse, teacher, or day care center looking for children's eye health and safety information?