April 2011
Volume 52, Issue 14
ARVO Annual Meeting Abstract  |   April 2011
Changes In Vitreous Temperature During Phacoemulsification
Author Affiliations & Notes
  • Guillermo Salcedo
    Retina, Ophthalmology,
    Asociacion Para Evitar la Ceguera, Mexico DF, Mexico
  • Jessica S. Watson
    UNC School of Medicine, Chappel Hill, North Carolina
  • Guadalupe Cervantes-Coste
    Clínica 4,
    Asociacion Para Evitar la Ceguera, Mexico DF, Mexico
  • Daniel Ochoa-Contreras
    Retina, Ophthalmology,
    Asociacion Para Evitar la Ceguera, Mexico DF, Mexico
  • Hugo Quiroz-Mercado
    Ophthalmology, Denver Health Medical Center, Denver, Colorado
  • Maurice B. Landers, III
    Retina, Ophthalmology,
    UNC School of Medicine, Chappel Hill, North Carolina
  • Footnotes
    Commercial Relationships  Guillermo Salcedo, None; Jessica S. Watson, None; Guadalupe Cervantes-Coste, None; Daniel Ochoa-Contreras, None; Hugo Quiroz-Mercado, None; Maurice B. Landers, III, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science April 2011, Vol.52, 5662. doi:
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      Guillermo Salcedo, Jessica S. Watson, Guadalupe Cervantes-Coste, Daniel Ochoa-Contreras, Hugo Quiroz-Mercado, Maurice B. Landers, III; Changes In Vitreous Temperature During Phacoemulsification. Invest. Ophthalmol. Vis. Sci. 2011;52(14):5662.

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      © ARVO (1962-2015); The Authors (2016-present)

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Purpose: : To measure vitreous temperature during an uneventful phacoemulsification surgery.

Methods: : A prospective, transversal, observational and descriptive study was designed. Patients programmed for vitrectomy and phacoemulsification surgery were included, regardless of the diagnosis and indication for the surgery. The procedure was started by inserting a 23 gauge trocar via the inferotemporal pars plana. A thermometer probe connected to a transducer was introduced to the mid-vitreous cavity, and temperature was measured at different stages of the phacoemulsification procedure: capsulorhexis, hydrodissection, phacoemulsification, aspiration, and IOL implantation. At the end of the procedure the same thermo-probe was used to measure the sublingual temperature of each patient. Room temperature was also measured during the procedure.

Results: : A total of 17 patients were included in the study. Mean phaco surgery time was 24.4 minutes (range 15 - 45minutes). Mean basal vitreous temperature and at the end of the steps (capsulorexis, hydrodissection, phacoemulsification, cortex aspiration and IOL implantation) was 33.04° C, 32.54° C, 32.25° C, 30.45° C, 29.98° C, 30.42° C, respectively. Mean body temperature was 36.50° C. Mean room temperature was 22.34° C.

Conclusions: : The vitreous humor is under relative hypothermia when compared to the body temperature. As expected the temperature decreases during the surgery but eventually increases to a basal state.

Keywords: vitreous • vitreoretinal surgery 

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