Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Transmission polarized micrograph of a conductive keratoplasty treatment spot in a pig cornea with a corneal thickness of about 650 μm, 7 days postoperatively. The footprint is cylindrical and approximately 80% of corneal depth. Reprinted with permission from Ophthalmology 2002;109:1987.
