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Related Concept Videos

Vision01:24

Vision

Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
Color Vision01:24

Color Vision

Color perception begins in the retina, the light-sensitive layer at the back of the eye. Two main theories explain how colors are seen: the trichromatic theory and the opponent-process theory. The trichromatic theory, proposed by Thomas Young in 1802 and extended by Hermann von Helmholtz in 1852, suggests that color vision is based on three types of cone receptors in the retina. These cones are sensitive to different but overlapping ranges of wavelengths corresponding to red, blue, and green.
Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
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...
Visual System01:26

Visual System

Light enters the eye through the cornea, a transparent, dome-shaped surface covering the surface of the eyeball that helps to direct and focus incoming light. This light is then channeled toward the pupil, an adjustable opening whose size is controlled by the iris. The iris, a pigmented muscle, regulates the amount of light entering the eye by contracting or dilating the pupil, thereby ensuring optimal light levels for clear vision.
Once through the pupil, the light passes through the lens, a...
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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Vision for 2020.

Laura Giles1, E Thomas Brewer, Laura Mosqueda

  • 1Archstone Foundation, Long Beach, California 90802, USA. lgiles@archstone.org

Journal of Elder Abuse & Neglect
|August 17, 2010
PubMed
Summary
This summary is machine-generated.

Improving elder abuse response systems is crucial for older adults. Key areas include public awareness, better identification, integrated services, justice system improvements, and resource utilization for a stronger elder protection system.

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Area of Science:

  • Gerontology
  • Public Health
  • Social Work

Background:

  • Elder abuse and neglect pose significant challenges to the well-being of older adults.
  • Existing response systems require enhancement to effectively address the complexities of elder abuse.

Purpose of the Study:

  • To outline a vision for improving elder abuse and neglect response systems by 2020.
  • To identify critical areas for advancing the field of elder protection over the next decade.

Main Methods:

  • Collective insights from 20 projects funded by the Archstone Foundation Elder Abuse and Neglect Initiative.
  • Analysis of lessons learned from practical implementation in California.

Main Results:

  • Five key areas for advancement were identified: public awareness, case identification/triage, integrated services, justice system response, and resource leveraging.
  • The initiative's experiences offer adaptable models for other communities.

Conclusions:

  • A multi-faceted approach is essential for a robust elder abuse response system.
  • Successful strategies can be replicated and adapted to improve elder protection nationwide.