<prompt> All are seen in Keratoconus EXCEPT:Progressive vision loss due to increasing myopia and irregular astigmatismKeyser Fleischer RingScissoring reflex in retinoscopyMunson sign Positive  <response>: Ans. b Keyser Fleischer RingRef: A.K. Khurana 6th ed. 131; Khurana 4th ed. 141 Fleischer ring is seen in keratoconus and not KF rings. KF ring is seen in Wilsons disease ChalcosisKERATOCONUS Keratoconus Conical cornea is a non-inflammatory bilateral 85 ecstatic condition of cornea in its axial part.Clinical Features Patient presents with a defective vision due to progressive myopia and irregular astigmatism, which does not improve fully despite correction with glasses. Slit lamp examination may show thinning and ectasia of central cornea, opacity at the apex and Fleischers ring at the base of cone, folds in Descemets and bowmans membranes. Vogt lines: Very fine, vertical, deep stromal striae which disappear with external pressure on the globe are peculiar feature. On retinoscopy a yawning reflex scissor reflex Munsens sign: localized bulging of lower lid when patient looks down is positive in late stages. 