Gaze-Induced Desçemet’s Folds Secondary to a Primary Pterygium

Solomon, Renée; Ehrenhaus, Michael; Palmer, C. A. L.; Perry, Henry D.; Donnenfeld, Eric D.

doi:10.1097/01.icl.0000167713.37080.57

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2007

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“…Therefore, we believe that, at least in primary pterygia, the pterygium-related traction on cornea in abduction may not always significantly increase. In some advanced primary pterygia 32,33 or in recurrent pterygia with extensive medial scarring 21,34 or in pseudopterygia with firm lateral canthus attach, 35 corneal astigmatism is expected to increase in lateral or, in the latter case, medial gaze. In this study, case eyes with grade 1 PS had significant PS temporal displacement compared with unaffected eyes.…”

Section: Discussionmentioning

confidence: 99%

Plica Semilunaris Temporal Ectopia

Denion¹,

Chambaz²,

Dalens³

et al. 2007

Cornea

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Primary nasal pterygia result in PS temporal ectopia, and PS position grades (more than grade 1) are linked to the presence of with-the-rule astigmatism. These findings are consistent with the exertion of tractional forces at both pterygium ends. In eye abduction, medial canthus structures (PS, caruncule) may be dragged temporally. Thus, pterygium-related corneal traction may not always significantly increase in eye abduction. PS temporal ectopia may influence the decision to remove PS during pterygium surgical excision.

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Section: Discussionmentioning

confidence: 99%