Inclusion Criteria:  Hyperopes. 2-Shallow AC. 3-With gonioscopy carried out under dim-light conditions without indentation ,with the eye in primary position there is inability to visualize ≤ 180° of the posterior trabecular meshwork (TM) in the absence of peripheral anterior 4-IOP ≤ 21 as measured by tonometry. 5-Normal visual field on static automated perimetry (SAP) testing. 5-Normal optic nerve head (ONH) appearance on fundus biomicroscopy. 6-Family history of primary angle closure disease.  Exclusion Criteria:  1-Eyes with significant corneal opacity that can impare signal strings of any of the used imaging modalities.  2-Eyes wih history of intraocular surgery (e.g. cataract surgery ,retinal detachment surgery).  3-Eyes with history of laser procedures (e.g.laser peripheral iridotomy). 4-Eyes with anterior segment pathology as iridocyclitis or angle disgenesis 5. Eyes with history of trauma. 6- Eyes with findings suggestive of 2dry cause of glaucoma (e.g. iris or angle neovascularization, any iris or corneal abnormalities, dilated episcleral vessels ).