1. Department of Ophthalmology, College of Medicine King Saud University Riyadh Saudi Arabia
2. Dr. Nasser Al‐Rashid Research Chair in Ophthalmology, College of Medicine King Saud University Riyadh Saudi Arabia
3. Laboratory of Histochemistry and Cytochemistry University of Leuven, KU Leuven Leuven Belgium
4. University Hospitals UZ Gasthuisberg Leuven Belgium
5. Rega Institute for Medical Research, Department of Microbiology and Immunology and Transplantation, University of Leuven KU Leuven Leuven Belgium