U 11.615: Bright's bright eye
This phrase was used in medical texts of the time such as Alexander Haig's Uric Acid (1904), which happened to be part of Joyce's Trieste library:
Also in the Clinical Journal (1905), vol. 25, p. 81:
The term 'Bright's eye' can be traced back to at least 1878 in Jean Martin Charcot's Lectures on Bright's disease of the kidneys: delivered at the School of Medicine of Paris:
The medical term for this condition used to be 'Retinitis morbus Brightii'.