• A simple surgical technique for maintaining normal intraocular pressure during enucleation of eyes with a malignant melanoma of the choroid consists of making an incision into the anterior chamber through clear cornea with a microvitreoretinal blade, followed by the introduction of a No. 21-gauge scalp vein needle or a No. 23-gauge sidewall-holed needle attached to a closed system filled with balanced salt solution. Measurements of pressure fluctuations during five enucleations are given. Such a system maintains the anterior chamber and keeps fluctuations in IOP to a minimum. This may be important in preventing hematogenous dissemination of tumor cells, resulting in metastatic disease.
Blair CJ, Guerry RK, Stratford TP. Normal Intraocular Pressure During Enucleation for Choroidal Melanoma. Arch Ophthalmol. 1983;101(12):1900-1902. doi:10.1001/archopht.1983.01040020902013