Peripheral retinal cryotherapy for potvitrectomy diabetic vitreou hemorrhage in phakic eye Original Reearch Article

Purpoe: To review the anatomic and viual outcome of a conecutive erie of phakic patient with potoperative diabetic vitreou hemorrhage (PDVH) who underwent reviion vitrectomy with peripheral retinal cryotherapy. Method: We performed a retropective chart review of conecutive phakic patient who underwent reviion vitrectomy for PDVH who alo received peripheral retinal cryotherapy. Final corrected viual acuitie after reviion vitrectomy with peripheral retinal cryotherapy were compared to corrected viual acuitie before and at the time of PDVH. Anatomic outcome uch a retinal attachment, vitreou hemorrhage, iri neovacularization, len opacity, and anterior hyaloidal neovacularization were conidered. Reult: Nineteen (86%) of 22 eye (21 patient) that underwent reviion of vitrectomy and trancleral peripheral retinal cryotherapy for PDVH alo received upplementary endolaer photocoagulation in the poterior pole. In 16 eye (73%), no further vitreou hemorrhaging occurred after thi procedure. In ix eye (27%), vitreou hemorrhage recurred after reviion of vitrectomy and peripheral retinal cryotherapy but cleared pontaneouly in three of thee eye. Of the three eye with nonclearing recurrent vitreou hemorrhage after reviion of vitrectomy and peripheral retinal cryotherapy, the caue for the vitreou hemorrhage wa known for two: evere, progreive anterior hyaloidal neovacularization. With a mean follow-up ± D of 6.8 ± 5.1 month (range, 0.5 to 19.5 month), final corrected viual acuity after reviion of vitrectomy and peripheral retinal cryotherapy for PDVH improved over preoperative viual acuity (at which time vitreou hemorrhage wa preent) in 18 eye (82%) becaue of removal of vitreou hemorrhage from the viual axi. However, final viual acuity reached or exceeded pre-PDVH viual acuity in only five of the 15 eye for which pre-PDVH viual acuity wa known. Concluion: For phakic eye with nonclearing PDVH, peripheral retinal cryotherapy (often augmented, when poible, by additional poterior pole endolaer photocoagulation) may be ued to upplement previou retinal ablative therapy during reviion of vitrectomy. Thi procedure lead to anatomic tabilization and viual improvement in the majority of eye. Trancleral peripheral retinal cryotherapy i often feaible in ituation (uch a media opacity) that preclude ue of peripheral retinal endolaer or indirect laer photocoagulation.