Secondary angle closure glaucoma due to iatrogenic big bubble formation in manual DALK for stromal degeneration: An unusual presentation

A 65-year-old male was planned for Deep anterior lamellar keratoplasty (DALK) to improve his visual quality from the underlying spheroidal degeneration along the visual axis. An attempt for a big bubble was futile, hence converted to a manual DALK. On postoperative day 1, he developed secondary angle closure glaucoma due to reverse pupillary block by the host DM. Decompression of the big bubble was done and angle closure was resolved with a good visual outcome at 1-month post-op. We present the first case of secondary angle closure glaucoma due to reverse pupillary block by a big bubble in a rigid cornea. Abbreviations: DALK = Deep anterior lamellar keratoplasty, OD = oculus dexter, OS = oculus sinister, DS = Diopters Sphere, DC = Diopters cylinder, AS-OCT = anterior segment optical coherence tomography, DM = Descemet’s membrane, IOP - Intraocular pressure, GHJ = Graft-host junction, BSS = Balanced salt solution