The effect of colour vision deficiency on the ability of optometrists to interpret retinal images

Researchers from Indiana University in the US have explored the effect of colour vision deficiency on the ability of optometrists to interpret retinal images.

Writing in PLOS One, scientists described a small study that was conducted at the 2024 annual meeting of the American Academy of Optometry in Indianapolis, US.

A total of 55 optometrists were assessed for colour vision deficiency before assessing a series of 12 colour fundus photographs which showed a variety of conditions – including images of haemorrhage, pigmentation, and optic nerve pallor.

Study participants were asked to identify and report any lesions that were present in the photographs.

Of the 55 optometrists, 15 had a colour vision deficiency – including four who were previously unaware that this was the case.

The researchers found that both colour vision deficiency and older age reduced the ability of optometrists to identify retinal lesions.

The authors noted that approximately 8% of Caucasian males have some form of red-green colour vision deficiency.

They called for optometrists to undergo colour vision testing before entering practice.

“Our findings suggest that CVD may pose a disability to eye care providers,” the researchers highlighted.