A. A. . Khan, Ummara Shafiq, Shehzad Ahmad, Abaid Ur Rehman, Hafiz Zohaib Hassan, and Zara Arif, “IMPACT OF DIFFERENT GRADES OF PTERYGIUM ON CORNEAL ASTIGMATISM AND VISUAL FUNCTION”, IJHR, vol. 3, no. 10, pp. 178–187, Sep. 2025, doi: 10.71000/tjjpgv86.