May 2008
Volume 49, Issue 13
Free
ARVO Annual Meeting Abstract  |   May 2008
Intraocular Pressure During Femto-Lasik Procedures in Enucleated Human Eyes
Author Affiliations & Notes
  • C. Strohmaier
    Dept. of Ophthalmology & Optometry, Paracelsus University, Salzburg, Austria
  • G. Grabner
    Dept. of Ophthalmology & Optometry, Paracelsus University, Salzburg, Austria
  • C. Runge
    Dept. of Ophthalmology & Optometry, Paracelsus University, Salzburg, Austria
  • H. A. Reitsamer
    Dept. of Ophthalmology & Optometry, Paracelsus University, Salzburg, Austria
  • Footnotes
    Commercial Relationships  C. Strohmaier, None; G. Grabner, None; C. Runge, None; H.A. Reitsamer, None.
  • Footnotes
    Support  None.
Investigative Ophthalmology & Visual Science May 2008, Vol.49, 2914. doi:
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    • Get Citation

      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.

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Abstract
 
Purpose:
 

To measure intraocular pressure in enucleated eyeballs duringFemto-Lasik procedures with the Zeiss Visumax and IntralaseFS Systems

 
Methods:
 

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).

 
Results:
 

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.

 
Conclusions:
 

Both systems used in this study caused significant incresesof IOP, however, the Intralase system causes higher increasesthat the Zeiss system.  

 

 
Keywords: refractive surgery: LASIK • intraocular pressure 
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