How ageing affects the relationship between the eyes and the brain - Cameron Optometry | Cameron Optometry
How ageing affects the relationship between the eyes and the brain

How ageing affects the relationship between the eyes and the brain

Posted on 07th August 2014

A study in the journal Current Biology goes some way to explain why thinking ability in some people decreases as they get older and the key factor was the loss of ability to process visual information quickly or ‘at a glance’.

ageing eye loses transparency

The study compared how quickly older people took in information at a glance and also their ability to perform more complex unrelated tasks. They found that these 2 skills were very tightly linked suggesting a possible link between quick visual input and retaining a sharp mind

This goes some way to explain why as people get older, they are less able to process information quickly from a fleeting glance and need to take more time to study before being able to digest the information, such as seeing a new face enter the room.

It would be interesting to further this study to see how much a decline in actual vision affects this process. At the moment the study looks at how the brain is digesting what the eyes are seeing. I would be interested to see if the findings varied according to the individual’s eyesight. After all the eyes have to see the information clearly to be given a chance to process it quickly and accurately.

We already know that a normal ageing eye loses transparency (you need about 3x as much light input aged 60 to see as clearly as you do at 20) even without any conditions such as cataract, all the more reason to make sure you are getting your eyes examined regularly and keeping you glasses or contact lens prescription up to date especially as you get older.


Related Posts

Coffee morning for parents of children with congenital cataracts

05th December 2018

Last month we welcomed parents of children with congenital cataracts to a coffee morning to meet others in a similar position and to discuss any concerns with our optometrists. We are also setting up ...

Read more

Frame Room update: gift vouchers & new brands

30th November 2018

Our eyewear boutique, the Frame Room continues to be a popular addition since it launched two years ago. Stocking a wide range of independent eyewear designers, with specialist guidance from our team ...

Read more

Flashes and floaters explained

31st October 2018

What are flashes and floaters? Floaters look like small, dark spots or flecks that appear to move around the eye. They are more common if you are myopic (short-sighted) or if you have had eye surgery...

Read more

Eyewear trends for 2019

24th October 2018

Earlier this month the trio of Lesley, Gill and Amy jetted off to Paris on a trend-finding mission. The SILMO eyewear show is where the world’s eyewear brands gather to showcase their latest designs...

Read more