1. 1Cornea Research Chair, Department of Optometry, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh 11433, Saudi Arabia
2. 2Department of Chemistry, College of Science and Humanities, Shaqra University, Duwadimi, Saudi Arabia
3. 3Applied Organic Chemistry Department, National Research Centre, Dokki, Giza, Egypt
4. 4School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, United Kingdom of Great Britain and Northern Ireland