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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.
Restorative Care01:19

Restorative Care

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,...
Specialized Care Centers and Settings-II01:30

Specialized Care Centers and Settings-II

Rural Health Centers
Rural health centers are specialized care facilities in remote locations with very few medical personnel. The primary care providers who run the centers are mostly Registered Nurse Practitioners. Here, emergency treatment is provided to critically ill or injured patients before they are transferred to the closest hospital. Fortunately, due to advancement in technology, many rural healthcare facilities and professionals have easy access to diagnostic and treatment...
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...
Photoreceptors and Visual Pathways01:22

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...
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...

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Development of an Audio-based Virtual Gaming Environment to Assist with Navigation Skills in the Blind
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Basic concepts and terms for low vision rehabilitation

A Colenbrander1, D C Fletcher

  • 1Department of Ophthalmology, California Pacific Medical Center, San Francisco USA.

The American Journal of Occupational Therapy : Official Publication of the American Occupational Therapy Association
|October 1, 1995
PubMed
Summary

Occupational therapists need clear terminology for visual impairment rehabilitation. Replacing "legally blind" with detailed ICD-9-CM classifications improves communication and recognizes multiple levels of visual performance.

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Area of Science:

  • Rehabilitation Medicine
  • Ophthalmology
  • Public Health

Background:

  • Growing role of occupational therapists in visual impairment rehabilitation.
  • Need for standardized and precise terminology in the field.
  • Limitations of the traditional "legally blind" vs. "legally sighted" classification.

Purpose of the Study:

  • To advocate for the accurate use of terminology in visual impairment.
  • To recommend a shift from binary classifications to nuanced descriptions of vision loss.
  • To improve interprofessional communication regarding visual performance.

Main Methods:

  • Literature review on visual impairment classification systems.
  • Analysis of current terminology used in occupational therapy.
  • Recommendation for adopting the International Classification of Diseases, 9th revision, Clinical Modification (ICD-9-CM).

Main Results:

  • The dichotomy of legally blind versus legally sighted is insufficient.
  • The ICD-9-CM offers a more detailed classification of visual performance levels.
  • Adoption of ICD-9-CM facilitates better understanding of patient needs.

Conclusions:

  • Accurate terminology is crucial for effective visual impairment rehabilitation.
  • The ICD-9-CM classification system should replace outdated dichotomies.
  • Standardized terminology enhances collaboration among healthcare professionals.