The toxic agent in ‘Tobacco amblyopia’ is
Correct Answer: Cyanide
Description: (Cyanide): Ref: 296-KH (92-P)TOBACCO AMBLYOPIA: -Toxic agent involved cyanide fond in tobacco.Excessive tobacco smoking Decreased cyanide detoxification due to alcoholics dietary deficiency of sulphur rich proteins| |Excessive cyanide in blood | Degeneration of ganglion cells particularly of the macular region | Degeneration of papillo-macular bundle in the nerve | Toxic amblyopia * Bilateral gradually progressive impairment in the central vision* Visual field examination - Bilateral centrocaecal scotomas* Fundus examination is essentially normal or there may be slight temporal pallor of the disc.
Category:
Ophthalmology
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now