[Application of confocal scanning laser Doppler retinal flowmetry in the measurement of fundus blood flow parameters after retinal detachment surgery].
OBJECTIVE
To discuss the influence of retinal detachment (RD) surgery on the blood flow of retina and optic nerve head.


METHODS
Heidelberg Retina Flowmeter (HRF) was used to measure the blood flow of retina and optic nerve head in 62 eyes of 62 patients with postoperative rhegmatogenous RD surgery, including 34 eyes having undertaken vitreoretinal (VR) surgery and 28 eyes, scleral buckling (SB) surgery. Operative methods included scleral encircling procedure, cryotherapy, lensectomy, vitrectomy, perfluorodeclin liquid application, endolaser and C(2)F(6) gas or silicone oil tamponade.


RESULTS
The blood flow volume (VOL), blood flow velocity (FLW) and the erythrocyte flow velocity (VEL) of fundus in the postoperative RD eyes were reduced in the comparison with those of the fellow control eyes. The VEL of temporal and nasal papillary disk rim had significant differences (P < 0.05). The VOL, FLW and VEL of the papillary vessel, VOL and FLW of temporal and nasal papillary disk rim, VOL of temporal and nasal juxtapapillary retina in the operative eyes were lower than those of the fellow eyes (P < 0.01). In the comparison between the eyes having undertaken VR surgery and the eyes undertaken SB surgery, the VOL, FLW and VEL of VR surgery were reduced more than those of SB surgery. The VEL of temporal and nasal papillary disk rim and nasal juxtapapillary retina and FLW of temporal juxtapapillary retina had significant differences (P < 0.05). VOL, FLW and VEL of silicone oil tamponade eyes were reduced more than those in the operative eyes without silicone oil tamponade. VOL of nasal papillary disk rim and juxtapapillary retina had significant differences (P < 0.05). VOL and VEL of temporal papillary disk rim, VOL of temporal juxtapapillary retina had very significant differences (P < 0.01).


CONCLUSIONS
VR surgery and SB surgery of RD influence papillary and retinal VOL, FLW, VEL. The influence of VR surgery on the fundus blood flow is more significant than that of SB surgery. The silicone oil tamponade also influences the VOL and VEL of the fundus.
Chen
Song
S
Tianjin Eye Hospital and Eye Institute, Tianjin 300070, China. hanmay@public1.tpt.tj.cn
Han
Mei
M
Zhang
Longli
L
Zhang
Shuli
S
Wang
Lanhui
L
Wei
Jingwen
J
D000293:Adolescent; D000328:Adult; D000368:Aged; D001783:Blood Flow Velocity / Q000187:drug effects / Q000502:physiology; D002465:Cell Movement / Q000502:physiology; D002648:Child; D004912:Erythrocytes / Q000502:physiology; D005260:Female; D006439:Hemodynamics; D006801:Humans; D017078:Laser-Doppler Flowmetry / Q000295:instrumentation / Q000379:methods*; D008297:Male; D008875:Middle Aged; D012163:Retinal Detachment / Q000503:physiopathology* / Q000601:surgery; D012171:Retinal Vessels / Q000503:physiopathology*; D012591:Scleral Buckling; D012827:Silicone Oils / Q000008:administration & dosage; D014821:Vitrectomy
D012827:Silicone Oils