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Toxic optic neuropathy.

Sharma P, Sharma R - Indian J Ophthalmol (2011 Mar-Apr)

Bottom Line: Toxic optic neuropathy (TON) is a disease entity which is not only underdiagnosed, but also often diagnosed at a stage when recovery of vision is not possible.This article gives an overview of common causes, clinical features, and management of TON.

View Article: PubMed Central - PubMed

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

ABSTRACT
Toxic optic neuropathy (TON) is a disease entity which is not only underdiagnosed, but also often diagnosed at a stage when recovery of vision is not possible. This article gives an overview of common causes, clinical features, and management of TON.

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(a, b) Bilateral disc edema in a case of early chloroquine toxicity
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Figure 0002: (a, b) Bilateral disc edema in a case of early chloroquine toxicity

Mentions: The pupils usually demonstrate a normal response to light and near stimulation. In those who are practically blind, the pupils will be dilated with a weak or absent response to light. The optic disc may appear normal, swollen, or hyperemic in the early stages [Fig. 2].[4] Disc hemorrhages may also be present. Continued damage to the optic nerve results in the development of optic atrophy, classically seen as temporal pallor of the optic disc.


Toxic optic neuropathy.

Sharma P, Sharma R - Indian J Ophthalmol (2011 Mar-Apr)

(a, b) Bilateral disc edema in a case of early chloroquine toxicity
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3116542&req=5

Figure 0002: (a, b) Bilateral disc edema in a case of early chloroquine toxicity
Mentions: The pupils usually demonstrate a normal response to light and near stimulation. In those who are practically blind, the pupils will be dilated with a weak or absent response to light. The optic disc may appear normal, swollen, or hyperemic in the early stages [Fig. 2].[4] Disc hemorrhages may also be present. Continued damage to the optic nerve results in the development of optic atrophy, classically seen as temporal pallor of the optic disc.

Bottom Line: Toxic optic neuropathy (TON) is a disease entity which is not only underdiagnosed, but also often diagnosed at a stage when recovery of vision is not possible.This article gives an overview of common causes, clinical features, and management of TON.

View Article: PubMed Central - PubMed

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

ABSTRACT
Toxic optic neuropathy (TON) is a disease entity which is not only underdiagnosed, but also often diagnosed at a stage when recovery of vision is not possible. This article gives an overview of common causes, clinical features, and management of TON.

Show MeSH
Related in: MedlinePlus