All of the following are true statements with respect to angle closure glaucoma except :

Vogt's triad is associated with angle closure glaucoma. characterised by : iris atrophy peripheral anterior synechiae glaucomaflecken. Vogt's triad is indicative of past attack. Typically pain due to angle closure is severe and does not allow patient to sleep. Episodes of angle closure glaucoma tend to occur in dim background illumination due to a mid-dilated pupil which increases the chances of an irido-lenticular touch and hence block in circulation of the aqueous from the posterior chamber to the anterior chamber. Shallow Anterior Chamber is the hallmark of Angle Closure Glaucoma Bullous keratopathy occurs in long standing angle closure glaucoma in end stage IV Mannitol is used to reduce the IOP by shrinking volume of vitreous, allowing lens to move backwards and allowing for break in the irido-lenticular contact that precipitates the angle closure attack