Related Experiment Video
Updated: Oct 16, 2025
07:06
Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients
Published on: March 29, 2022
2.8K
Prevalence of pseudophakia: U.S. population-based study
Ellen A Erie1, David O Hodge, Michael A Mahr
1From Department of Ophthalmology, Mayo Clinic, Rochester, Minnesota (Erie, Mahr); Department of Quantitative Health Science, Mayo Clinic, Jacksonville, Florida (Hodge).
Journal of Cataract and Refractive Surgery
|October 15, 2021
Summary
Pseudophakia prevalence in Olmsted County, Minnesota, surged 590% over 30 years, reaching 6.5% in 2018. Most older adults, especially those 85+, are pseudophakic, benefiting from cataract surgery.
Area of Science:
- Ophthalmology
- Public Health
- Epidemiology
Background:
- Pseudophakia, the state of having an intraocular lens after cataract surgery, is increasingly common due to aging populations and advancements in surgical techniques.
- Understanding the prevalence and trends of pseudophakia is crucial for healthcare planning and resource allocation.
Purpose of the Study:
- To determine the current prevalence and temporal trends of pseudophakia in a well-defined U.S. population.
- To calculate pseudophakia prevalence and associated mortality rates in Olmsted County, Minnesota, from 1988 to 2018.
Main Methods:
- A population-based cohort study utilizing the Rochester Epidemiology Project (REP) databases.
- Identification of pseudophakia cases in Olmsted County residents between 1988 and 2018.
- Calculation of age- and sex-specific prevalence rates and assessment of trends using Poisson regression; mortality rates estimated via Kaplan-Meier analysis.
Main Results:
- In 2018, 6.5% of Olmsted County residents (10,024 individuals) were pseudophakic.
- Prevalence increased significantly over 30 years (590%) and 10 years (67%), with higher rates in women and older age groups (88% of those 85+).
- Pseudophakia was associated with lower all-cause mortality compared to the general population.
Conclusions:
- Pseudophakia is highly prevalent in older adults, with most individuals aged 75 and above being pseudophakic in at least one eye by 2018.
- These findings highlight the significant impact of cataract surgery on the visual status and health outcomes of the aging population.
More Related Videos
05:46Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity
Published on: September 20, 2024
559
04:59Author Spotlight: Enhancing Visual Outcomes in Cataract Surgery: A Novel Technique to Prevent Posterior Capsular Opacification Through IOL Rotation
Published on: July 7, 2023
2.6K
Related Concept Videos
01:25Glaucoma: Overview
973
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
973
01:22Photoreceptors and Visual Pathways
6.8K
At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
6.8K
01:16Focusing of Light in the Eye
3.5K
Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
3.5K
01:08Prevalence and Incidence
952
In statistical epidemiology and health sciences, two essential metrics—prevalence and incidence—are fundamental for understanding disease dynamics within a population. These measures enable public health officials, epidemiologists, and researchers to assess the burden of diseases, allocate resources effectively, and design impactful public health policies and interventions.
Prevalence indicates the proportion of individuals in a population who have a specific disease or health...
Prevalence indicates the proportion of individuals in a population who have a specific disease or health...
952
01:27Open Angle Glaucoma: Treatment
752
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Drugs such as carbonic anhydrase inhibitors, α2- and...
752
01:28Angle Closure Glaucoma: Treatment
889
Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
889