Figure 2: From 2012 Study (image) Radiological Society of North America Share Print E-Mail Caption From a study of astronauts in 2012, sagittal oblique T2-weighted MR image of left eye before long-term flight. Note convexity of posterior globe (arrows). Credit Radiological Society of North America Usage Restrictions May use with credit. Share Print E-Mail 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.