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A. Otsubo, S. Kishi, K. Ohkoshi, T. Ymaguchi; The Influence of Peripheral Retinal Detachment in Choroidal Blood Flow of the Macula . Invest. Ophthalmol. Vis. Sci. 2003;44(13):3004.
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© ARVO (1962-2015); The Authors (2016-present)
Purpose: We previously reported the decreased choroidal blood flow in the area of retinal retattachment after successful surgery (2000 ARVO). To study the influence of peripheral retinal detachment to the choroidal blood flow in the macular area. Methods: The study included 10 eyes of 9 patients(4 males,5 females),who underwent a successful retinal detachment surgery.In all cases, retinal detachment was located in the peripheral fundus and did not involved the macula. Suspected mean duration of retinal detachment was about 150 days. Five eyes were treated by vitrectomy and 5 were with scleral buckling(3 eyes with segmental buckling, and 2 eyes with encircling). None of the patient had any ocular surgery previously. We performed laser speckle flowgraphy (LSFG ) in the 9 patients before and at 5 months after the surgery. LSFG is a newly introduced device that noninvasively measures the velocity of retinal and choroidal blood flow. We produced a composite map from a regional flowgraphy and compared the square blur rate (SBR) in the macular area before and after surgery. Results: Choroidal blood flow in the macular area was significantly increased in 7 of 10 eyes after reattachment of peripheral retinal detachment. In the remaining 3 eyes, it also gradually increased during the follow-up period. Conclusions: Reattachment of peripheral retinal detachment produced increasing of the choroidal blood flow in the macular area. Retinal function in the periphery may influence the choroidal blood flow in the macula.
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