Fig. 4From: Evaluating impact of Nd: YAG laser associated defects on optical quality of hydrophilic and hydrophobic intraocular lenses using visualization of light propagation and USAF test targetsImage of the United States Air Force (USAF) target at the focal position of the IOL. Left image (A) showing a hydrophobic IOL sample in unmodified condition. Right image (B) showing the same hydrophobic IOL with tiny defects (YAG-pits, n = 5). Note the contrast of image (A) is higher and lines better distinguishable than in (B)Back to article page