Origin and Evolution of the Vertebrate Eyelids and Adnexa In humans, the eyelids form a flexible soft-tissue structure that serves important functions of protecting the cornea from direct injury, adding…
Origin and Evolution of the Vertebrate Eyelids and Adnexa In humans, the eyelids form a flexible soft-tissue structure that serves important functions of protecting the cornea from direct injury, adding…
Eyelid Lesions and Their Origin in Eyelid Tissues There are a great many different types of lesions that occur in the eyelids. Numerous, sometimes confusing names have been applied to…
Embryology of the Eyelid Key Points Prenatal development in humans is divided into two periods: embryonic and fetal During the embryonic period, eyelid morphogenesis is a dynamic process involving complex…
Case study 1 A 14-year-old female patient with a history of ocular allergy controlled with eye drops and progressive advanced keratoconus (KC) in both eyes presented for evaluation, complaining of…
KEY CONCEPTS • This chapter reviews a case of keratoconus in one eye and early keratoonus in the contralateral eye. • A review of corneal imaging systems and their abmormal…
Case Study A 27-year-old female presented for follow-up for keratoconus (KC) after collagen cross-linking in both eyes 6 months previously. Her best-corrected visual acuity (BCVA) on the Snellen chart was…
KEY CONCEPTS • Corneal regeneration is a new approach in corneal surgical technique based on advanced therapies using stem cell therapy and bioengineering. In the future, the combination of both…
KEY CONCEPTS • Bowman’s layer transplantation can be used for the treatment of patients with advanced keratoconus not eligible for corneal cross-linking or intrastromal corneal ring segments, effecting a reshaping…
KEY CONCEPTS • Cataract surgery in the keratoconus patient is challenging. Difficulties in determining accurate measurements for intraocular lens calculations in advanced cases can lead to inaccurate and unpredictable results….
