<prompt> Following are the causes of painless sudden onset of loss of vision except -Acute congestive glaucomaVitreous hemorrhageCRAOCentral serous retinopathy  <response>: Ans. is a i.e., Acute congestive glaucoma o Acute congestive glaucoma causes sudden painful loss of vision.SuddenGradualPainfulPainlessPainfulPainlesso Acute congestive angle closure glaucomao Acute iridocyclitis uveitiso Chemical mechanical injury to eyeballo Endophthalmitiso Optic neuritiso Macular edemao CRAO central retinal artery occlusiono CRVO central retinal vein occlusiono Central serous retinopathyo Retinal detachmento Exudative Age-Related Macular Degeneration ARMDo Vitreous retinal hemorrhageo Methyl alcohol amblyopiao Subluxation or dislocation of lenso Corneal ulcerationo Chronic simple glaucomao Chronic iridocyclitis uveitiso Progressive pterygiumo Corneal dystrophyo Comeal degenerationo Cataract development senileo Chorioretinal degenerationo Dry type- Age-related macular degeneration ARMDo Diabetic retinopathyo Refractive errorso Presbyopia 