Wednesday, September 28, 2016

TINTED OR COLORED LENSES APPEAR TO NOT AMELIORATE READING DIFFICULTIES

From Opthalmic and Physiological Optics reports:


There are many anecdotal claims and research reports that coloured lenses and overlays improve reading performance. Here we present the results of a systematic review of this literature and examine the quality of the evidence. 
While many studies report improvements with coloured lenses, the effect size is generally small and/or similar to the improvement found with a placebo condition.
Consistent with previous reviews and advice from several professional bodies, we conclude that the use of coloured lenses or overlays to ameliorate reading difficulties cannot be endorsed and that any benefits reported by individuals in clinical settings are likely to be the result of placebo, practice or Hawthorne effects.

Thursday, September 22, 2016

ROBOTIC EYE SURGERY

According to this University of Oxford News report

University of Oxford surgeons at Oxford's John Radcliffe Hospital have performed the world's first operation inside the eye using a robot.

The device is designed to eliminate unwanted tremors in the surgeon’s hand – such as through their pulse – so tiny surgical manipulations can be safely carried out within the eye.
The robot acts like a mechanical hand with seven independent computer-controlled motors resulting in movements as precise as 1000th of a millimetre in scale.