<prompt> All are seen in Keratoconus EXCEPTKeyser Fleischer RingProgressive vision loss due to increasing myopia and irregular astigmatismScissoring reflex in retinoscopyMunson sign Positive  <response>: Fleischer ring is seen in keratoconus and not KF rings.KF ring is seen in Wilsons disease Chalcosis KERATOCONUS.Keratoconus Conical cornea is a non-inflammatory bilateral 85 ecstatic condition of the cornea in its axial part.Clinical FeaturesPatient 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 the central cornea, opacity at the apex and Fleischers ring at the base of the cone, folds in Descemets and bowmans membranes.Vogt lines: Very fine, vertical, deep stromal striae which disappear with external pressure on the globe are a peculiar feature.On retinoscopy a yawning reflex scissor reflex.Munsens sign: localized bulging of the lower lid when the patient looks down is positive in late stages. 