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I-SEE-CONE!

Writer's picture: Madhuvanthi MohanMadhuvanthi Mohan


Keratoconus is a non - inflammatory, progressive condition where the central or paracentral cornea undergoes progressive thinning and steepening causing irregular astigmatism and a โ€˜cone shapedโ€™ cornea. โฃ

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๐„๐ฑ๐ญ๐ž๐ซ๐ง๐š๐ฅ ๐ฌ๐ข๐ ๐ง๐ฌ ๐จ๐Ÿ ๐Š๐ž๐ซ๐š๐ญ๐จ๐œ๐จ๐ง๐ฎ๐ฌ โฃโฃ

โฃโฃโฃ

๐Œ๐ฎ๐ง๐ฌ๐จ๐งโ€™๐ฌ ๐’๐ข๐ ๐งโฃโฃโฃ

V shaped conformation of lower lid produced by the ectatic cornea in downgaze โฃโฃโฃ

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๐‘๐ข๐ณ๐ฎ๐ญ๐ญ๐ขโ€™๐ฌ ๐’๐ข๐ ๐งโฃโฃโฃ

Sharply focused beam of light near the nasal limbus produced by lateral illumination of the cornea โฃโฃโฃ




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Other external signs : โฃโฃโฃ

Charleux sign: Dark reflex in centre of cornea with distant direct ophthalmoscope in dilated pupils โฃโฃโฃ

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Scissoring reflex on retinoscopy โฃโฃโฃ

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Image from Rajan Eye Care Hospitalโฃโฃ

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