All are abnormality in lens shape except :

Microphakia, spherophakia (microspherophakia) all are types of abnormal lens. Microphakia – Abnormal smalleness of the lens of the eye. Spherophakia (microspherophakia) – in spherophakia the lens is amall and spherical (increase anterior and posterior curvature of lens) . Angle closure glaucoma occurs when the small round lens has blocked the flow of aqueous through the pupil.