Ophthalmology General 527f7f68 KISA% is associated with A Keratoconus B Keratoglobus C Hypermetropia with astigmatism D Terrien's marginal degeneration High-Yield Explanation Answer- A. KeratoconusThe KISA index is used in cases ofkeratoconus and is derived using 4 indices:Central keratometry KInferior- Superior keratometry (I-S)Astigmatism Index (AST)