This video shows a cornea with Fuch’s dystrophy. You can see guttata or guttae on the back surface of the cornea. These bumps indicate endothelial pump difficulty, and appear as a “beaten metal” appearance. If you look closely (look where the arrow is pointing) you can see a pock-marked surface that looks like craters on the moon.
Guttae are an important finding to note prior to cataract surgery, as this indicates a lower endothelial cell count and could lead to a decompensating cornea afer cataract extraction.
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guttata.wmv (4.6 meg, Windows video file)