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Restorative Care01:19

Restorative Care

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Restorative care is provided once a patient has been discharged from a healthcare facility and requires additional services. The additional services include home care, rehabilitation programs, and extended care. Restorative care centers help the patient regain their previous level of functioning or acquire a new level of functioning due to the incapacitating effects of a disease or a disability. It aims to assist patients in enhancing their quality of life by encouraging independence,...
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Vision01:24

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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.
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Color Vision01:24

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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.
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Depth Perception and Spatial Vision01:15

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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.
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Le Chatelier's Principle: Changing Concentration02:27

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A system at equilibrium is in a state of dynamic balance, with forward and reverse reactions taking place at equal rates. If an equilibrium system is subjected to a change in conditions that affects these reaction rates differently (a stress), then the rates are no longer equal and the system is not at equilibrium. The system will subsequently experience a net reaction in the direction of a greater rate (a shift) that will re-establish the equilibrium. This phenomenon is summarized by Le...
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Le Chatelier's Principle: Changing Volume (Pressure)02:32

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For gas-phase equilibria, changes in the concentrations of reactants and products can occur with altered volume and pressure. The partial pressure, P, of an ideal gas is proportional to its molar concentration, M.
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Video Experimental Relacionado

Updated: Feb 10, 2026

A Standardized Obstacle Course for Assessment of Visual Function in Ultra Low Vision and Artificial Vision
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A Standardized Obstacle Course for Assessment of Visual Function in Ultra Low Vision and Artificial Vision

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Restauración de la visión

Botond Roska1,2,3, José-Alain Sahel4,5,6,7

  • 1Institute of Molecular and Clinical Ophthalmology Basel, Basel, Switzerland. botond.roska@iob.ch.

Nature
|May 18, 2018
PubMed
Resumen
Este resumen es generado por máquina.

La restauración de la visión mediante la reparación de la retina está avanzando, con éxitos iniciales en el tratamiento de la ceguera. La investigación en curso aborda los desafíos clave para mejorar la función visual en pacientes con enfermedades oculares específicas.

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Área de la Ciencia:

  • Oftalmología
  • La Medicina Regenerativa
  • Ingeniería biomédica

Sus antecedentes:

  • La restauración de la visión a través de la reparación de la retina ha sido un objetivo médico de larga data.
  • Los avances recientes han permitido los primeros procedimientos exitosos de restauración de la visión.
  • Sigue habiendo desafíos significativos para lograr la restauración de la visión en alta resolución.

Objetivo del estudio:

  • Revisar el estado actual de las terapias de restauración de la visión.
  • Para discutir los desafíos y avances en la reparación de la retina.
  • Destacar las tecnologías emergentes y las aplicaciones clínicas para el tratamiento de la ceguera.

Principales métodos:

  • Revisión de la literatura actual sobre la reparación de la retina y la restauración de la visión.
  • Discusión de nuevos sistemas modelo y tecnologías traslacionales.
  • Análisis de las condiciones clínicas susceptibles a nuevos métodos de restauración de la visión.

Principales resultados:

  • Se han realizado exitosos procedimientos iniciales de reparación de la retina.
  • Se están superando los principales cuellos de botella en el desarrollo terapéutico.
  • Algunas funciones visuales han sido restauradas en pacientes con enfermedades específicas.

Conclusiones:

  • La restauración de la visión a través de la reparación de la retina está progresando, aunque con limitaciones.
  • Las nuevas tecnologías y modelos son cruciales para avanzar en el desarrollo de terapias.
  • Las aplicaciones futuras son prometedoras para combatir la ceguera en diversos entornos clínicos.