All are seen in Keratoconus EXCEPT:
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 (Chalcosis)KERATOCONUS* 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 Fleischer's 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)* Munsen's sign: localized bulging of lower lid when patient looks down is positive in late stages.
Progressive vision loss due to increasing myopia and irregular astigmatism
Keyser Fleischer Ring
Scissoring reflex in retinoscopy
Munson sign Positive
Ecstatic Conditions of Cornea