Vision

MiSight Contact Lens That Slows Nearsightedness In Kids Gets FDA Approval

Myopia (nearsightedness) is the most frequent cause of correctable visual impairment worldwide.  It occurs when the eye grows too long from front to back (axial length). Instead of focusing images on the retina, images are focused at a point in front of th ...

Article - News Staff - Nov 15 2019 - 6:16pm

Braille Math And Science Textbooks Feel Good- Now They Can Be Far Less Expensive

Since math is a language, there is no reason blind people can't learn it, but math and science textbooks in Braille require an enormous effort to produce. That means much higher cost for a small market, which means it can only be done by nonprofits on ...

Article - News Staff - Jan 17 2020 - 1:23pm

When The Blue Pill Causes Red Green Color Blindness

Sildenafil (viagra) is used to treat erectile dysfunction and is safe, with known side effects, but a few people have experienced light sensitivity and color vision impairment at the highest recommended dose. That doesn't mean men who need it should s ...

Article - News Staff - Feb 19 2020 - 11:39am

The Line Between Vision And Imagination Is Blurry

One symptom of post-traumatic stress disorder (PTSD) is intrusive visual reminders of a traumatic event. New research in Current Biology finds that the brain uses similar visual areas for mental imagery and vision, but it uses low-level visual areas less p ...

Article - News Staff - Jul 13 2020 - 11:52am

Are Preschoolers Racist? Only If Learned, But They Notice Skin Color Differences Even Earlier

With racial tension erupting again, parents may be wondering the appropriate age to discuss what kids see in news accounts or in protests at sporting events.  Psychologists believe that some infants are aware of race and children are capable of thinking ab ...

Article - News Staff - Aug 31 2020 - 1:43pm

Sanfilippo Syndrome: Childhood Dementia May Be Detectable In The Eyes

A new paper finds that widely available retinal imaging techniques may help reveal more about brain disease and monitor treatment efficacy, including a currently untreatable form of childhood-onset dementia, Sanfilippo syndrome. Sanfilippo syndrome is one ...

Article - News Staff - Dec 1 2020 - 11:44am

90% Of Marijuana Users Think It Doesn't Bring Visual Impairment, But They're Wrong

Some people believe that marijuana can be medical but almost no marijuana users think it impairs their vision. Though over 90 percent of users believe that cannabis has no effect on their vision, or perhaps a slight effect, smoking cannabis significantly a ...

Article - News Staff - Apr 13 2021 - 1:15pm

Dyslexia Affects Visual Processing Beyond Just Reading

Dyslexia is well-known to impact reading ability but it has been unclear which brain processes are affected by the condition. Whether dyslexia is, at its core, a visual processing disorder is hotly debated among researchers. With reading and writing a key ...

Article - News Staff - Nov 15 2021 - 3:33pm

Gene Mutations In Retinal Lesions From Vitelliform Macular Dystrophy Found

Multimodal adaptive optics imaging has revealed photoreceptor and retinal pigment epithelium relationships in eyes with vitelliform macular dystrophy.  Vitelliform macular dystrophy (VMD) is an inherited genetic disease that causes progressive vision loss ...

Article - News Staff - Jul 28 2022 - 9:19am

Young Incidence Of Type 2 Diabetes Puts Vision At Risk

Sixteen-year-old Karl is seen for the first time in my optometry practice. He was referred to me for a fluctuating vision problem. During his examination, I saw signs suggesting he may have diabetes, which could have explained the fluctuating vision. This ...

Article - The Conversation - Feb 7 2023 - 6:31am