There are multiple definitions:

1. World Health Organization(English)

   • IARC, PAHO, WHA, ANC, BPCR, C/S, ICU, MDSR, MMR, SDG
   • Organizations (international)
   • https://www.who.int/en/
   • https://doi.org…55/2023/7767208

2. wound healing opacity [index](English)

   • refers to the quality of the cut created by a microkeratome
   • ACS, CCM
   • Ophthalmology, Wound healing/care
   • https://doi.org…crs.2003.10.024