Photographs of the Power Grip Style (IMAGE) Optica Caption This shows photographs of the power grip style (A-B) and camcorder style designs (C-D) of the prototype OCT scanner. Both devices acquire 3D OCT images of the retina. Credit Credit: <i>Biomedical Optics Express</i> Usage Restrictions Must include caption and credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.