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Related Concept Videos

Glaucoma: Overview01:25

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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: Treatment01:27

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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: Treatment01:28

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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 Pathways01:22

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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,...
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Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption01:22

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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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Focusing of Light in the Eye01:16

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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...
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Related Experiment Video

Updated: Mar 22, 2026

Laser Capture Microdissection of Highly Pure Trabecular Meshwork from Mouse Eyes for Gene Expression Analysis
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Glaucoma Disparities in the Hispanic Population.

Niraj Nathan1, Karen M Joos1

  • 1a Department of Ophthalmology , Vanderbilt University , Nashville , TN , USA.

Seminars in Ophthalmology
|April 30, 2016
PubMed
Summary

Glaucoma care for the growing Hispanic population presents unique challenges. Addressing issues like access to care and under-diagnosis is crucial for effective treatment outcomes.

Keywords:
DisparitiesHispanicLatinoglaucomaoutcomesrisk factorsscreeningtreatment

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Area of Science:

  • Ophthalmology
  • Public Health
  • Health Disparities

Background:

  • The Hispanic population is the largest and fastest-growing minority in the U.S.
  • A significant rise in open-angle glaucoma patients from Hispanic communities is projected within 30-40 years.
  • Current glaucoma care for Hispanics faces challenges in access and diagnosis.

Purpose of the Study:

  • To examine the specific considerations and challenges in glaucoma care for the Hispanic population.
  • To highlight demographic factors, risk factors, treatment utilization, and outcomes in this demographic.
  • To emphasize the growing importance of addressing these issues for effective public health strategies.

Main Methods:

  • Review of current literature and data on glaucoma prevalence and care in the Hispanic population.
  • Analysis of demographic trends and their impact on glaucoma burden.
  • Examination of disparities in access to care, diagnosis rates, and treatment utilization.

Main Results:

  • Hispanics are disproportionately affected by glaucoma, with increasing prevalence projected.
  • Significant barriers exist in accessing timely and adequate glaucoma care.
  • Under-diagnosis and lower utilization of medical and surgical therapies are prevalent in this group.

Conclusions:

  • Proactive strategies are essential to overcome barriers in screening and treatment for Hispanic glaucoma patients.
  • Addressing unique challenges is paramount for improving glaucoma care outcomes in this rapidly growing population.
  • Failure to address these disparities will exacerbate the public health impact of glaucoma.