Corrective eye surgery: New discoveries in vision processing

24th June 2011

Scientists working at Syracuse University have revolutionised thinking in terms of how vision is processed, those in line for corrective eye surgery may be interested to hear.

The group, which also included researchers from Columbia University, found that previous assumptions over the vision process are flawed, by showing that the process happens differently than first thought.

Previously, scientists thought that light signals could only be initiated by light-receptor molecules in the retinal cells changing shape through isomerisation, but this team have showed that is not the case.

Instead, they found there is an earlier step in the process, which does not require isomerisation, involving redistribution of electrons on the chromophores, which absorb light once it enters the eye, triggering a series of rapid and complex molecular changes.

Lead author Kenneth Forster said: "We found that the complete blocking of isomerisation of the chromophore does not preclude vision in our model organism."

According to the RNIB, there are around two million people in the UK who suffer from sight loss. This research may have implications for them.

Posted by Edward Bartel

1. Forster, Kenneth: "Evidence from Chlamydomonas on the Photoactivation of Rhodopsins without Isomerization of Their Chromophore. Chemistry and Biology, 23rd June 2011.

Health News is provided by Adfero in collaboration with Spire Healthcare. Please note that all copy above is ©Adfero Ltd. and does not reflect views or opinions of Spire Healthcare unless explicitly stated. Additional comments on the page from individual Spire consultants do not necessarily reflect the views or opinions of other consultants or Spire Healthcare.
 

Find a treatment, test or scan available at:

or

Find a consultant

Use one or more of the options below to search for a consultant and link through to view their Spire profile.

or

Let us help you

fill out this form and we will get back to you:

Please select a hospital

We can call you

Please enter your details below and we will call you back.

What is the aim of your enquiry?

Please select a hospital

If we are unable to reach you by phone, please include your email address so that we can get in touch...

Categories

Ophthalmology

© Spire Healthcare Group plc (2016)