Purpose: To use optical modeling to compare a 6.0 mm and 7.0 mm intraocular lens (IOL) optic diameters on peripheral retinal illumination with implications for negative dysphotopsia.
View Article and Find Full Text PDFPurpose: To determine if there is an increased incidence rate of post-cataract surgery (pcs) anterior ischemic optic neuropathy (AION) compared to spontaneous AION (sAION).
Design: Retrospective, population-based cohort.
Methods: Patients diagnosed with AION from January 1, 1990, through December 31, 2016, while residing in Olmsted County, Minnesota.
J Cataract Refract Surg
March 2020
Purpose: To report normative angle alpha orientation and magnitude distribution in a cataract surgery patient population.
Setting: U.S.
Purpose: Use optical modeling to evaluate the effect of the intraocular lens (IOL) optic-haptic junction on retinal illumination and negative dysphotopsia.
Setting: Mayo Clinic, Rochester, Minnesota, USA.
Design: Schematic model eye.
Purpose: To examine anesthesia recovery duration after ophthalmologic procedures performed at an ambulatory surgical center (ASC) and provide information that could be used to increase postanesthesia recovery unit efficiency.
Setting: Ambulatory surgical center at tertiary medical center, Rochester, Minnesota, USA.
Design: Retrospective case series.
Purpose: To determine racial and ethnic differences in age-related macular degeneration (AMD) and the use of anti-vascular endothelial growth factor (VEGF) injections for AMD among United States Medicare beneficiaries.
Design: Cross-sectional Medicare database study.
Participants: 2014 United States fee-for-service Medicare beneficiaries.
J Cataract Refract Surg
July 2019
Purpose: To use ray-tracing analysis and simulated retinal illumination profiles to design an intraocular lens (IOL) that prevents or reduces negative dysphotopsia after cataract surgery.
Setting: Mayo Clinic, Rochester, Minnesota, and Simpson Optics LLC, Arlington, Texas, USA.
Design: Experimental study.
J Cataract Refract Surg
April 2019
Purpose: To use optical modeling to demonstrate how a sulcus-fixated piggyback intraocular lens (IOL) affects negative dysphotopsia.
Setting: Mayo Clinic, Rochester, Minnesota, USA.
Design: Retrospective case series.
J Cataract Refract Surg
February 2018
Purpose: To determine racial/ethnic differences in rates of complex cataract surgery among United States Medicare beneficiaries.
Setting: Departments of Ophthalmology and Health Science Research, Mayo Clinic, Rochester, Minnesota, USA.
Design: Retrospective case series.
J Cataract Refract Surg
December 2017
We present a case of successful removal of late calcium deposition on the posterior surface of a silicone intraocular lens (IOL) optic in association with asteroid hyalosis using a surgical technique that included pars plana vitrectomy, a lighted pick, and a modified silicone-tipped cannula. The lighted pick provided the most efficient and complete removal of calcium deposits. Postoperatively, the dystrophic calcification was removed and the IOL optic was clear at 6 months follow-up.
View Article and Find Full Text PDFPurpose: To estimate geographic variations and surgeon and patient characteristics associated with the use of trabeculectomy and glaucoma drainage devices (GDDs) to treat glaucoma among US Medicare fee-for-service (FFS) beneficiaries.
Design: Observational cohort study of a Medicare claims database.
Participants: US Medicare Part B FFS patients (age ≥65 years) and their glaucoma surgeons.
Objective: To determine differences in the provision of Medicare services based on physician gender in the United States.
Patients And Methods: Participants included all 2013 Medicare fee-for-service physicians and their patients, a population that is predominantly older than 65 years. The 2013 Medicare Provider Utilization and Payment Data for services rendered between January 1, 2013, and December 31, 2013, were combined with the 2015 Physician Compare National Downloadable files and 2015 Berenson-Eggers Type of Service classification files.
Purpose: To quantify Medicare beneficiary proximity to his or her yttrium-aluminum-garnet (YAG) laser capsulotomy-providing ophthalmologist and optometrist in Oklahoma by calculating driving distances and times.
Design: Cross-sectional cohort study using 2014 Oklahoma Medicare 100% and 5% data sets and Google Maps distance and travel time application programming interfaces.
Participants: U.
Purpose: To test for associations between anti-vascular endothelial growth factor (VEGF) industry payments to ophthalmologists who provide intravitreal injections and specific anti-VEGF agent use.
Design: Cross-sectional Medicare database study.
Participants: US fee-for-service Medicare beneficiaries and all ophthalmologists who submitted intravitreal injection claims for >10 Medicare beneficiaries between August 1, 2013, and December 31, 2013.
Importance: Fuchs endothelial corneal dystrophy (FECD) is the most common indication for corneal transplant in the United States. The association between race/ethnicity and incidence of advanced FECD, defined by a need for endothelial or penetrating keratoplasty, has not been investigated.
Observations: The 2014 US Medicare Limited Data Set (5% sample of 27 163 740 fee-for-service Medicare patients) was analyzed for rate of keratoplasty performed for FECD (International Classification of Diseases, Ninth Edition code 371.
Purpose: To estimate geographic variation of intravitreal injection rates and Medicare anti-vascular endothelial growth factor (VEGF) drug costs per injection in aging Americans.
Design: Observational cohort study using 2013 Medicare claims database.
Participants: United States fee-for-service (FFS) Part B Medicare beneficiaries and their providers.
Purpose: To determine the association between statin use and incident cataract surgery.
Methods: Using the resources of the Rochester Epidemiology Project, a retrospective population-based, case-control study was performed. Cases included 6024 county residents aged 50 years and older who had first-eye cataract surgery between 1 January 2004 and 31 December 2011.
Purpose: To estimate the rate and geographic variation of cataract surgery that is managed jointly by ophthalmologists and optometrists in aging Americans.
Design: Database study.
Participants: United States fee-for-service (FFS) Medicare Part B beneficiaries and their providers.
Purpose: To investigate whether selective serotonin reuptake inhibitor use is associated with an increased risk of cataract surgery.
Design: Population-based case-control study.
Methods: setting: Olmsted County, Minnesota.
Purpose: To assess cleaning effectiveness of room surfaces in an office-based intravitreal injection practice by using adenosine triphosphate (ATP) luminometry.
Design: Prospective, comparative case series.
Participants: A total of 792 intravitreal injection room surfaces were sampled (396 before cleaning, 396 after cleaning) using 3 cleaning methods.
J Cataract Refract Surg
September 2013
Purpose: To estimate the incidence of cataract surgery in a defined population and to determine longitudinal cataract surgery patterns.
Setting: Mayo Clinic, Rochester, Minnesota, USA.
Design: Cohort study.
Who are the ophthalmologists of the future? How will the new generation practice? How will they interact with their professional organizations? What part will technology play in their lives and professions? A new paradigm is in place that will dramatically affect ophthalmologists' answers to these questions going forward. Given the uncertainty of our future professional lives, it is vital that we anticipate, contemplate, and formulate a plan. To begin this process, the Knapp Symposium at the 2011 Annual Meeting of the American Ophthalmological Society was devoted to a discussion of the ophthalmologist of the future.
View Article and Find Full Text PDF