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Related Concept Videos

Glaucoma: Overview01:25

Glaucoma: Overview

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...
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Open Angle Glaucoma: Treatment

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...
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Angle Closure Glaucoma: Treatment

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...
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Photoreceptors and Visual Pathways

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, whereas...
Diabetic Retinopathy01:27

Diabetic Retinopathy

DefinitionDiabetic retinopathy is a microvascular complication of diabetes affecting the retinal blood vessels.Risk FactorsDiabetic retinopathy is present in almost all individuals with type 1 diabetes and more than 60% of those with type 2 diabetes after two decades of disease.The risk increases with poor glycemic control, hypertension, dyslipidemia, smoking, pregnancy, and puberty.Although cataracts and glaucoma are also more frequent in people with diabetes, retinopathy remains the leading...
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As individuals age, their body's physiology evolves, affecting drug pharmacokinetics. The most apparent changes occur in the gastrointestinal tract, where an increase in gastric pH, a delay in gastric emptying, and a reduction in gastrointestinal motility are observed. Remarkably, these changes do not substantially modify the absorption of orally administered drugs, particularly those absorbed via passive diffusion.Transdermal drug delivery emerges as a highly viable method for older adults due...

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Glaucoma in Latinos/Hispanics.

Elma Kim1, Rohit Varma

  • 1Doheny Eye Institute and Department of Ophthalmology, Keck School of Medicine of University of Southern California, Los Angeles, California 90033, USA.

Current Opinion in Ophthalmology
|December 31, 2009
PubMed
Summary
This summary is machine-generated.

The Los Angeles Latino Eye Study (LALES) highlights significant glaucoma prevalence in Latinos. Understanding specific risk factors and characteristics is crucial for early diagnosis and effective public health interventions in this population.

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Area of Science:

  • Ophthalmology
  • Public Health
  • Epidemiology

Background:

  • Glaucoma prevalence varies significantly across racial and ethnic groups.
  • Latinos represent a rapidly growing population with unique health considerations.
  • Understanding ethnic-specific disease patterns is vital for targeted interventions.

Purpose of the Study:

  • To review findings from the Los Angeles Latino Eye Study (LALES) on glaucoma prevalence in Latinos.
  • To identify factors associated with glaucoma development in the Latino population.
  • To inform clinical and public health strategies for this demographic.

Main Methods:

  • The Los Angeles Latino Eye Study (LALES) is the largest prevalence survey of eye disease in Latinos of Mexican origin.
  • Analysis of LALES data to identify prevalence, risk factors, and manifestations of glaucoma.
  • Review of existing literature and LALES findings for a comprehensive overview.

Main Results:

  • LALES provides extensive data on glaucoma prevalence within the Latino population.
  • Specific risk factors and clinical manifestations of open-angle glaucoma in Latinos were identified.
  • The study highlights the heterogeneity of glaucoma presentation in this ethnic group.

Conclusions:

  • LALES data are critical for developing effective clinical and public health interventions for glaucoma in Latinos.
  • Recognizing the unique characteristics of glaucoma in the Latino population is essential for accurate diagnosis.
  • Tailored management strategies are necessary to prevent vision loss from glaucoma in this group.