To investigate fluctuations in the ocular surface, we used high-speed videokeratoscopy (50 Hz) to measure the dynamics of the ocular surface topography. Ocular surface height difference maps were ...
In the second half of the 20th century, the foundation of the U.S. Geological Survey’s national map series was the handcrafted 7.5-minute topographic map. Times change, budgets get squeezed and ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback