<prompt> Arlts line is seen in-Vernal keratoconjunctivitisPterygiumOcular pemphigoidTrachoma  <response>: Arlts line is seen in trachoma due to conjuctival scrarring,which may be irregular,star shaped or linear. this linear scar present in the sulcus subtarsalis is called Als line Ref ; A K KHURANA Comorehensive Ophtalmology edition 4,page-69 ref img 