Dr. Campbell and colleagues have designed a hand-held SS-OCT/OCTA to facilitate the evaluation of young children with retinal diseases. The investigators hypothesized that OCT/OCTA can provide objective diagnosis of zone, stage, and plus ROP disease.
The team developed a non-contact and contact, hand-held 100-kHz SS OCT device weighing 381 g with resolutions of 17 µm laterally and 6 µm axially and a 100º field of view. The device was custom designed to obtain OCTA, Doppler OCT, and ultrawide-field (> 100º diameter) OCT images, Dr. Campbell explained.
Dr. Campbell demonstrated noncontact images that were obtained in adult patients in two seconds. Using this device, the field of view and resolution were adjustable and a larger field of view was possible with longer acquisition time and lower resolution.
“By adjusting the scanning pattern and tolerating a bit of motion artifact, we obtained wide-field OCTA images that reliably demonstrated perfusion into zone 2,” Dr. Campbell said. “We also could see the corresponding retinal structure on OCT.”