<prompt> Which of the following is true about pterygium?Probe can be passed underneath the pterygium at the limbusAssociated with exposure to infrared radiationBare sclera technique has 30-80 recurrenceElastotic degeneration with distoion of Descemets membrane  <response>: Limbal conjunctival autograft transplantation LLAT to cover the defect after pterygium excision is the latest and most effective technique in the management of pterygium. In bare sclera technique, some pa of conjunctiva is excised and its edges are sutured to the underlying episcleral tissue leaving some bare pa of sclera near the limbus ref: A K KHURANA OPHTALMOLOGY,E4, Page-82 