Rider's cataract is seen in-
Blue dot cataract
Zonular cataract
Anterior capsular cataract
Coronary cataract
The opacity in zonular (lamellar) cataract is usually sharply demarcated and the area of the lens within and around the opaque zone is clear, although linear opacities like spokes of a wheel, cllaed riders may run outwrds towards the equator. Ref: Parson's 22nd/e p.270&21st/e p.265; Khurana 7th/e p.189.
Lens