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C. Strohmaier, G. Grabner, C. Runge, H. A. Reitsamer; Intraocular Pressure During Femto-Lasik Procedures in Enucleated Human Eyes. Invest. Ophthalmol. Vis. Sci. 2008;49(13):2914. doi: https://doi.org/.
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© ARVO (1962-2015); The Authors (2016-present)
To measure intraocular pressure in enucleated eyeballs duringFemto-Lasik procedures with the Zeiss Visumax and IntralaseFS Systems
Intraocular pressure was measured in post mortem enucleatedeyeballs (n=22) not suitable for keratoplasty by direct cannulationof the vitreous body. A second cannula was inserted to adjustintraocular pressure to a baseline pressure of 20 mmHg. Theeyeballs were lifted by boxes to achieve an appropriate heightand put under the Femto-Lasik devices. During the Intralaseprocedures a subset (n=8) of eyeballs was treated at the lowerlimit of the green light range (i.e. minimum applanation pressure,low green)) whereas another subset (n=7) was measured at theupper linit of the green light range (i.e. maximum toleratedapplanation pressure, high green).
See table 1 for recordings of the Intralase procedures and table2 for the Zeiss System. All data are measurements of intraocularpressure given as mean ± 95% CI (mmHg).Within the Intralasegroup, applanation and cutting pressures from the "high green"and "low green" groups are significantly different (p<0.01).The colum suction in table 2 is the negative suction pressureapplied to the patient interface of the device.
Both systems used in this study caused significant incresesof IOP, however, the Intralase system causes higher increasesthat the Zeiss system.
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