Transmission of light across the adult and neonatal eyelid in vivo

J Robinson, SC Bayliss, AR Fielder - Vision research, 1991 - Elsevier
J Robinson, SC Bayliss, AR Fielder
Vision research, 1991Elsevier
Light transmission characteristics of the human adult and neonatal eyelid were measured in
vivo. Light was delivered via a grating monochromator through a fibre-optic mounted onto a
contact lens placed under the eyelid, and detected using a photodiode on its external skin
surface. Data from 5 adult and 9 preterm neonatal subjects indicate that the eyelid acts as a
predominantly red-pass filter, with mean transmissions at 700 nm of 14.5% in the adult and
21.4% in the neonate, declining to⩽ 3% in both groups below 580 nm. The relevance of this …
Abstract
Light transmission characteristics of the human adult and neonatal eyelid were measured in vivo. Light was delivered via a grating monochromator through a fibre-optic mounted onto a contact lens placed under the eyelid, and detected using a photodiode on its external skin surface. Data from 5 adult and 9 preterm neonatal subjects indicate that the eyelid acts as a predominantly red-pass filter, with mean transmissions at 700 nm of 14.5% in the adult and 21.4% in the neonate, declining to ⩽3% in both groups below 580 nm. The relevance of this data to clinical electrophysiology and to estimates of retinal irradiance is discussed.
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