Multifocal Intraocular Lenses

Patients with macular degeneration experience great frustration. They are losing their independence and their ability to read. Often they are no longer able to drive and to engage in activities they loved doing. Several articles have listed depression as something not uncommon among patients with AMD. Therefore, I am a believer that these patients should be helped as much as possible while maintaining realistic expectations so they do not become discouraged even more.

Screening the retina with OCT rules out preexisting conditions that would affect the outcomes of cataract surgery and helps select candidates for premium IOLs.

We all know what karma refers to — in Hinduism and Buddhism, it is “the sum of a person’s actions in this and previous states of existence, viewed as deciding their fate in future existences.” Karma is like a destiny or fate, following as effect from cause. I view “digital karma” as the modern-day version of fate in this digital era.

They say technology reaches its pinnacle when it becomes invisible. In other words, the best technologies work for us without requiring any conscious attention. Current presbyopia-correcting lens implants require us to make a choice between some degree of monovision and the limited optics of diffractive or extended depth of focus designs. Both of these compromises can lead to frustration for at least some patients some of the time. An adjustable lens such as the RxSight Light Adjustable Lens can offer a much higher degree of surgical accuracy. In clinical trials, 92% of patients were within 0.5 D of their refractive target, and 70% saw 20/20 unaided. The Perfect Lens (Perfect Lens), which uses a femtosecond laser to adjust the refractive index of an acrylic lens inside the eye, has the potential to refine refractive outcomes within 0.1 D of target refraction, although no clinical trial results are yet available. This kind of refractive accuracy is worth a lot. But so far, these lenses do not correct presbyopia and therefore require significant patient counseling and careful selection to find the right fit for monovision.

Despite decades of trying to optimize results and despite the many advances in IOL technology, achieving optimal refractive outcomes and meeting patient expectations with cataract surgery are still challenges. Results are subject to many variables, and looking at statistics, only about half of patients are within the high satisfaction range of achieving 0.5 D of emmetropia and 0.5 D or less of astigmatism.

A number of years ago, David Chang, MD, asked me to write a chapter for a book he was editing on the future of ophthalmology, including cataract and IOL surgery. In that chapter, I predicted the next disruptive technology in IOLs would be an adjustable accommodating IOL. We are now seeing a confluence of technology advances that make this seem a likely commercial product in the next few years.

In this video, Karla Zadnik, OD, PhD, dean and the Glenn A. Fry Professor of Optometry and Physiological Optics at The Ohio State University College of Optometry, discusses multidisciplinary approaches to myopia control.

In this video, Karla Zadnik, OD, PhD, dean and the Glenn A. Fry Professor of Optometry and Physiological Optics at The Ohio State University College of Optometry, discusses the importance of educating parents about myopia risks.

In this video, Karla Zadnik, OD, PhD, dean and the Glenn A. Fry Professor of Optometry and Physiological Optics at The Ohio State University College of Optometry, discusses the current state of research into pharmaceutical treatments for myopia.

In this video, Karla Zadnik, OD, PhD, dean and the Glenn A. Fry Professor of Optometry and Physiological Optics at The Ohio State University College of Optometry, discusses challenges in diagnosing myopia.