Intraocular Lens Power Calculations
Definition Intraocular lens (IOL) power calculation is a process to determine the optimal IOL power to achieve the desired refraction following cataract surgery. Key Features • Accurate IOL power calculation…
Phacoemulsification
Definition A surgical technique to remove the nuclear portion of a cataractous lens using an aspirating and vibrating ultrasonic handpiece. Key Features • Changing phacoemulsification (“phaco”) “power” or “amplitude” is…
Endothelial Keratoplasty: Targeted Treatment for Corneal Endothelial Dysfunction
Definition Endothelial keratoplasty has significant advantages over penetrating keratoplasty as a targeted method to replace endothelial cells in the treatment of endothelial dysfunction. Key Feature • Targeted replacement of corneal…
Epidemiology, Pathophysiology, Causes, Morphology, and Visual Effects of Cataract
Definition The prevalence, distribution, strategies to reduce the cataract prevalence and the disordered physiological processes, causes, and different forms of cataract are discussed. Key Features • Cataracts develop earlier in…
The Pharmacotherapy of Cataract Surgery
Definition Medications used in cataract surgery. Key Features • Pharmacotherapeutic agents are used in the preoperative, intraoperative, and postoperative periods of cataract surgery. • Preoperative medications are used as mydriatics,…
Cataract Surgery in Complex Eyes
Definition Cataract surgery in eyes with other pathologies. Key Features • Zonular integrity is evaluated at the slit lamp preoperatively by assessing for lens decentration, phacodonesis, and iridodonesis. • Uveitis…
Outcomes of Cataract Surgery
Definition Outcomes of cataract surgery include both objective and subjective measures. The objective outcomes are typically visual and refractive. Key Features Objective measures of functional vision: • Uncorrected visual acuity….
Evolution of Intraocular Lens Implantation
IN THIS CHAPTER Additional content available online at ExpertConsult.com Definition Report on the evolution of intraocular lens designs. Key Features • Description of anterior and posterior chamber intraocular lens designs,…
Conjunctivitis: Infectious and Noninfectious
Definition Conjunctivitis is infectious or non-infectious inflammation of the mucous membrane lining eye wall and inner lids. Key Features • Infectious causes may be bacterial, fungal parasitis, or viral. •…
Complications of Contact Lens Wear
Definition Inflammatory, metabolic, mechanical, or infectious events that are associated with contact lens use. Key Features • Overall safety record of contact lenses is excellent. • Low-Dk lenses, overnight wear,…
