Cutting the encircling band.
OBJECTIVE
To report the effect of cutting the encircling band on ocular blood flow.


METHODS
In an interventional case series of 27 eyes with an encircling band, the ocular pulse amplitude (OPA) was measured and pulsatile ocular blood flow (POBF) derived and compared with fellow eyes. The bands were cut in 11 eyes and the POBF measured at 1 month, 3 months, and 1 year. Changes in POBF, buckle height, and visual acuity were determined.


RESULTS
The presence of the encircling band reduced the POBF to a mean of 43% (P < 0.001) of the fellow eye. Cutting the band resulted in a mean recovery to 85.6%. No retina detached after cutting, buckle height was only slightly diminished, and the visual acuity was unaffected.


CONCLUSIONS
An encircling band diminishes the POBF. Cutting the band restores significant flow.
Lincoff
Harvey
H
Department of Ophthalmology, New York Presbyterian Hospital-Weill Medical College of Cornell University, New York 10021, USA. mcaulfie@med.cornell.edu
Stopa
Marcin
M
Kreissig
Ingrid
I
Madjarov
Bojidar
B
Sarup
Vimal
V
Saxena
Sandeep
S
Brodie
Scott
S
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001783:Blood Flow Velocity; D020878:Device Removal; D004596:Electroretinography; D005260:Female; D006801:Humans; D007429:Intraocular Pressure / Q000502:physiology; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011673:Pulsatile Flow; D012039:Regional Blood Flow; D012160:Retina / Q000503:physiopathology*; D012163:Retinal Detachment / Q000503:physiopathology* / Q000601:surgery; D012171:Retinal Vessels / Q000503:physiopathology; D012591:Scleral Buckling / Q000295:instrumentation; D014792:Visual Acuity / Q000502:physiology