In this conversation, Sam Barry and Sud Koushik discuss intraocular lenses (IOLs) and their use in cataract surgery and refractive lens exchange. They explain that IOLs are used to replace the natural crystalline lens in the eye and can be implanted before or after the development of a cataract. They describe how IOLs are held in place by the capsular bag and zonules in the eye and discuss the different types of IOLs available, including monofocal lenses, toric lenses for astigmatism, and multifocal lenses. They emphasize the importance of understanding patient goals and preferences when choosing the appropriate IOL. Dr. Sam Barry and Dr. Sud Koushik discuss the different types of intraocular lenses (IOLs) used in cataract surgery and refractive lens exchange. They explain that IOLs can correct distance, intermediate, and up-close vision, but there is no lens that can provide 100% spectacle independence for all distances. They also discuss the concept of diopters as a unit of measurement for lens power and astigmatism correction. The doctors highlight the benefits of the Light Adjustable Lens (LAL) and the IC8 Apthera lens, which offer adjustability and improved vision for patients with specific eye conditions. They also mention the PanOptix lens as a popular choice for multifocal vision correction. The conversation concludes with a discussion on the cost of IOLs.