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The motivation underlying this work stems from the limited options currently available to ophthalmologists for investigating the finer details of the sclera in living patients and specimens.

Uveitis is a rare inflammatory disease of the choroid of the eye, which lies between the retina and the sclera.

“The Bachelor” star Joey Graziadei shared Thursday that he has Gilbert syndrome, a liver condition that explains why the sclera — the white outer coating — of his eyes appear yellow.

Amid criticism, Moore later retracted his claim, saying he had only transplanted the eye’s outer portion—the sclera and cornea.

Separately, the sclera, the eye’s outer layer, would most closely resemble those of horses and cows and include a nictitating membrane, the built-in goggles that make it possible to see underwater.