Advanced Keratoconus: Case Study
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…
Very Early Keratoconus: Case Study
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…
Central Keratoconus: Case Study
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…
Cellular Therapy of the Corneal Stroma: A New Type of Corneal Surgery for Keratoconus and Corneal Dystrophies—A Translational Research Experience
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…
Alternative Surgical Techniques: Bowman’s Layer Transplantation and Stromal Regenerating Techniques
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…
Cataract Surgery in the Keratoconus Patient
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….
Lamellar Keratoplasty in Keratoconus
KEY CONCEPTS • Lamellar keratoplasty is often required for advanced keratoconus when contact lens wear is no longer comfortable or an ideal fit cannot be achieved. • Regional pachymetry and…
Medical and Surgical Management of Corneal Hydrops
Introduction Acute corneal hydrops (ACH) is characterized by sudden-onset corneal edema, typically in the setting of a corneal ectatic disorder. It is a vision-threatening complication of keratoconus that can result…
Combined Procedures for Keratoconus
KEY CONCEPTS • A combined procedure is justified when a single procedure cannot achieve the same safety and efficacy. • Inclusion and exclusion criteria for the individual procedures should be…
Intrastromal Corneal Ring Segments Mechanism and Techniques
KEY CONCEPTS Mechanism: • An intrastromal corneal ring segment (ICRS) acts as a spacer, shortens arc length, and increases thickness in the cornea. • The corrective effect is correlated in…
