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Related Concept Videos

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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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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...
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Related Experiment Video

Updated: Jun 4, 2026

Optical Coherence Tomography: Imaging Mouse Retinal Ganglion Cells In Vivo
08:17

Optical Coherence Tomography: Imaging Mouse Retinal Ganglion Cells In Vivo

Published on: September 22, 2017

Toxic optic neuropathy.

Pradeep Sharma1, Reena Sharma

  • 1Squint and Neuro-Ophthalmology Unit, R P Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.

Indian Journal of Ophthalmology
|February 26, 2011
PubMed
Summary
This summary is machine-generated.

Toxic optic neuropathy (TON) is often underdiagnosed and detected late, hindering vision recovery. Early diagnosis and management of TON are crucial for preserving sight.

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Rat Model of Photochemically-Induced Posterior Ischemic Optic Neuropathy
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Optical Coherence Tomography: Imaging Mouse Retinal Ganglion Cells In Vivo
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Rat Model of Photochemically-Induced Posterior Ischemic Optic Neuropathy
14:54

Rat Model of Photochemically-Induced Posterior Ischemic Optic Neuropathy

Published on: November 29, 2015

Area of Science:

  • Ophthalmology
  • Neurology

Background:

  • Toxic optic neuropathy (TON) is a significant cause of vision loss.
  • It is frequently underdiagnosed or diagnosed at a late stage.

Purpose of the Study:

  • To provide a comprehensive overview of Toxic Optic Neuropathy.
  • To discuss common etiologies, clinical presentations, and management strategies.

Main Methods:

  • Literature review on Toxic Optic Neuropathy.
  • Synthesis of information on causes, symptoms, and treatment.

Main Results:

  • TON has diverse causes, including toxins and medications.
  • Clinical features vary, often presenting with bilateral, painless vision reduction.
  • Management focuses on identifying and removing the causative agent.

Conclusions:

  • Emphasizes the need for increased awareness and timely diagnosis of TON.
  • Highlights the importance of prompt intervention to improve visual outcomes.