A new expandable silicone rubber explant used to indent the sclera at the macula was tested experimentally in rabbits. The device consists of a Dacron-reinforced silicone rubber strip that has an expandable portion (or balloon) at its midpoint connected to a silicone filling tube. The explant was expanded with 0.03 to 0.06 ml of an antibiotic solution. Smooth, round buckles that exerted even indentation were produced. A decrease in height of 20% to 50% was observed ophthalmoscopically during six months of follow-up. The degree of buckling can be easily controlled during operation and may be modified postoperatively.
Huamonte F, Refojo MF, Banuelos A. Expandable Silicone Implants for Scleral BucklingIV. Experiments With An Explant for Macular Breaks. Arch Ophthalmol. 1975;93(6):429-431. doi:10.1001/archopht.1975.01010020443010