Vicente Lorenzo O. Cabahug, and Irwin Y. Cua. 2019. “Topography-Guided Phototherapeutic Keratectomy for Irregular Astigmatism in a Post-Cataract Surgery Patient”. UP Journal of Ophthalmology 7 (01):21-22. https://www.upjo.info/index.php/upjo/article/view/357.