<prompt> True about acid injury to eye are all except?makes a barrier and prevent deeper penetrationmore destructive than alkali injuriessteroids are used to control inflammationglaucoma is most preventable complication following acid injury  <response>: Chemical injuries of the eye may be divided into 2 types 1. Acid injuries Burns- less destructive-- coagulate and precipitate proteins-- create a barrier and prevent fuher penetration Except- Hydrofluoric acid-- fluoride ions penetrate into deep tissues -- more damage Ground glass apparance 2. Alkali injuries- severe, they are lipophilic-- saponification of memebrane lipids-- tissues undergo liquefactive necrosis release of proteolytic enzymes-- damage Mx - Immediate Irrigation with normal saline even water if normal saline not available for minimum 30 mins, pH of conjunctiva must be 7-7.2. Chemical debris can be removed by double eversion Rx- Topical antibiotics Grade I-III injuries- erythromycin Grade IV- moxigatifloxacin Cycloplegics atropinehomatropine Topical steroids prednisolone acteate - 10days, tapered by 14 days based on clinical response Doxycyline - MMP Antiglaucoma drugs to avoid secondary glaucoma Vitamin C Tear supplements Other Mx options - Autologous serum, Amniotic membrane transplantation AMT, mucous membrane graft, Conjunctival flaps 