Ophthalmology

Scientists deploy CRISPR to preserve photoreceptors in mice

Silencing a gene called Nrl in mice prevents the loss of cells from degenerative diseases of the retina, according to a new study. The findings could lead to novel therapies for preventing vision loss from human diseases ...

Neuroscience

Midnight Blue—A new system for color vision

The swirling skies of Vincent Van Gogh's Starry Night illustrate a mystery that has eluded biologists for more than a century—why do we perceive the color blue in the dimly lit night sky? A newly discovered mechanism of ...

Psychology & Psychiatry

How does color blindness affect color preferences?

(Medical Xpress)—Dichromacy is a color vision defect in which one of the three types of cone photoreceptors is missing. The condition is hereditary and sex-linked, mostly affecting males. Although researchers have explored ...

Ophthalmology

Color vision tends to fade with age, study finds

(HealthDay)—Here's one more ability that seems to decline with age: color sense. A new study finds that many people lose their ability to clearly distinguish certain colors as they age, with losses typically starting around ...

Ophthalmology

Color vision problems become more common with age

Abnormal color vision increases significantly with aging—affecting one-half or more of people in the oldest age groups, reports a study in Optometry and Vision Science, official journal of the American Academy of Optometry.

Ophthalmology

Glaucoma drug can cause droopy eyelids

Prostaglandin analogues (PGAs), drugs which lower intraocular pressure, are often the first line of treatment for people with glaucoma, but their use is not without risks. PGAs have long been associated with blurred vision, ...

Neuroscience

More than just looking: Role of tiny eye movements explained

Have you ever wondered whether it's possible to look at two places at once? Because our eyes have a specialized central region with high visual acuity and good color vision, we must always focus on one spot at a time in order ...

Ophthalmology

Bionic eye gives hope to the blind

After years of research, the first bionic eye has seen the light of day in the United States, giving hope to the blind around the world.

Neuroscience

The eyes have it: Men do see things differently to women

The way that the visual centers of men and women's brains works is different, finds new research published in BioMed Central's open access journal Biology of Sex Differences. Men have greater sensitivity to fine detail and ...

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