Colour vision link may help myopia research

(Medical Xpress)—A possible link between colour vision and the development of myopia - or near-sightedness - has been discovered by an international group, including a researcher from The University of Western Australia.

Winthrop Professor David Hunt and colleagues in the UK and the US found the link during research into a that affects males and is carried by females.

Their findings are published in the journal and Vision Science.  The work is an important step towards understanding - and one day treating - myopia, which is one of the world's most common eye defects.

The researchers analysed genes that specify the photosensitive (opsin) pigments found in in the retina of seven families with Bornholm Eye Disease (BED).  BED was first described in a big family from the Danish island of Bornholm.

The families in this study were from Denmark, Minnesota (US) and the UK.  The UK family originated from Morocco.  All affected individuals have significantly reduced vision, are red-green colour blind and suffer from infantile myopia. 

The study established that opsin is responsible for both cone dysfunction ( in the eye are responsible for colour vision) and the colour vision defect.

"Since myopia is an integral component of the BED syndrome, it would seem likely that this must also arise from the dysfunctional cone photopigment and the disruption of the normal cone mosaic, but how this results in myopia remains uncertain," the researchers write.

Related Stories

Thyroid affects color vision

date Mar 29, 2011

What part does the thyroid gland have in vision? Thyroid hormone is crucially involved in controlling which visual pigment is produced in the cones. Previously, it was assumed that the colour sensitivity of ...

Recommended for you

Miniature pump regulates internal ocular pressure

date Jul 01, 2015

Elevated or diminished eye pressure impairs our ability to see, and in the worst cases, can even lead to blindness. Until now, there has been no effective long-term treatment. In response, Fraunhofer researchers are developing ...

Closing the Australian eye health gap may be in sight

date Jun 30, 2015

Three years after the launch of the roadmap to close the gap for vision, progress has been made but "much remains to be done", according to the authors of a Perspective published online today by the Medical Jo ...

Pioneering gene therapy takes aim at inherited blindness

date Jun 29, 2015

Canada's first human gene therapy trial for eyes—the replacement of a faulty gene with a healthy one—is now underway at the Royal Alexandra Hospital to preserve and potentially restore vision for people ...

Iris research focuses on blood vessel patterns

date Jun 29, 2015

The structure of the microvasculature or blood vessels in the iris could play an important role in people's contraction of eye maladies like glaucoma and cataract, according to a WA-led study.

User comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.