Retinal oximetry with a prototype handheld oximeter during hyperoxia.

Purpose: Retinal oximetry measures oxygen saturation in retinal vessels. With the introduction of a mobile handheld prototype oximeter, this technique will become available for a broader patient population including bedridden patients and newborn babies. The objective is to determine the sensitivity of this handheld oximeter in room air and during isocapnic hyperoxia.

Fundus imaging in newborn children with wide-field scanning laser ophthalmoscope.

Purpose: Current fundus imaging in newborn babies requires mydriatics, eye specula and corneal contact. We propose that a scanning laser ophthalmoscope (SLO) allows ultra wide-field imaging with reduced stress for the child.

Methods: This prospective observational single centre study was conducted in Landspítali, University Hospital, Reykjavik, Iceland.

Retinal Oximetry with Scanning Laser Ophthalmoscope in Infants.

Purpose: Dual wavelength retinal oximetry has been developed for adults, but is not available for infants. Retinal oximetry may provide insight into the pathophysiology of oxygen-mediated diseases like retinopathy of prematurity. More insight in the oxygen metabolism of the retina in infants may provide valuable clues for better understanding and subsequent prevention or treatment of the disease.