Elongated hook with laser lines on one side aids in appropriate identification of the correct planes and guides the surgeon to the reach of the instrument in relation to lenticule size. The dissector on the other end helps to release the lenticule from the cornea
Kobayashi 16mm DSAEK donor marker is a large marker with a diameter of 16mm. This size of large corneoscleral rim is required for holding the donor conrea on the artificial anterior chamber for microkeratome cut. This marker is useful when the eyebank technician makes the corneoscleral rim for DSAEK.
Specially design 4mm circle pattern made of dots, on a medium profile marker with cross-hairs.
Dr. Roberto Pineda (Associate Professor of Ophthalmology at Harvard Medical School): "Based on our experience with DWEK cases, maintaining a descemetorhexis of 4.0-4.5mm is currently felt to be the best size for allowing visual rehabilitation with a reasonable recovery period. This marker with crosshairs creates a central circular corneal impression with a hatched design permitting better visualization while performing the descemetorhexis."