<prompt> Features of vernal conjunctivitis are a Shield ulcerb HornerTrantas spotsc Papillary hypertrophy d Herbert pitse Pannusabbcabcbcd  <response>: Conjunctival signs of spring catarrh.Palpebral form: Papillary hypertrophy, cobblestone appearance Pavement stone appearance.Bulbar form: Dusky triangular congestion, gelatinous thickening around limbus, Horner - Trantas spot. Corneal signs vernal keratopathyPunctate epithelial keratitisUlcerative vernal keratitis: shallow transverse ulcer Shield ulcerVernal corneal plaquesSubepithelial scarringPseudogerontoxon: characterized by a classical cupids bow outline. 