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Intraocular Pressure Course During the Femtosecond Laser-Assisted Cataract Surgery in Porcine Cadaver Eyes.

Abstract Femtosecond laser-assisted cataract surgery (FLACS) is an increasingly common procedure. Most laser systems require corneal applanation and thereby increase intraocular pressure (IOP). The purpose of the present study was to evaluate the IOP changes that occur during the FLACS procedure performed using the Catalys femtosecond laser system.
PMID
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Authors

Mayor MeshTerms
Keywords
Journal Title investigative ophthalmology & visual science
Publication Year Start




PMID- 29261846
OWN - NLM
STAT- MEDLINE
DCOM- 20171229
LR  - 20171229
IS  - 1552-5783 (Electronic)
IS  - 0146-0404 (Linking)
VI  - 58
IP  - 14
DP  - 2017 Dec 1
TI  - Intraocular Pressure Course During the Femtosecond Laser-Assisted Cataract
      Surgery in Porcine Cadaver Eyes.
PG  - 6457-6461
LID - 10.1167/iovs.17-21948 [doi]
AB  - Purpose: Femtosecond laser-assisted cataract surgery (FLACS) is an increasingly
      common procedure. Most laser systems require corneal applanation and thereby
      increase intraocular pressure (IOP). The purpose of the present study was to
      evaluate the IOP changes that occur during the FLACS procedure performed using
      the Catalys femtosecond laser system. Methods: IOP was measured by direct
      cannulation of the vitreous body of porcine cadaver eyes (N = 20). By inserting a
      second cannula connected to a water column, all the eyes were set to a baseline
      IOP of 20 mm Hg. The eyes were lifted by custom-made stands to achieve the
      appropriate height and position under the Catalys system. The standard FLACS
      procedure was performed using varying fragmentation times to assess the influence
      of tissue fragmentation times on IOP peaks. Results: We identified significant
      IOP elevations from baseline IOP levels during all steps of the FLACS procedure
      (baseline: 20.28 +/- 1.32 mm Hg; vacuum: 34.48 +/- 4.21 mm Hg; capture: 47.90 +/-
      13.02 mm Hg; lock: 48.41 +/- 9.04 mm Hg; analysis: 47.15 +/- 5.97 mm Hg;
      capsulotomy: 45.74 +/- 6.52 mm Hg; fragmentation: 48.41 +/- 6.80 mm Hg; end:
      17.81 +/- 1.61 mm Hg; all P < 0.001). Furthermore, the tissue fragmentation time 
      had a significant effect on the peak IOP values detected (R = 0.62, P = 0.04, n =
      9). Conclusions: The present study reveals significant IOP increases during FLACS
      procedures carried out using the Catalys system.
FAU - Sperl, Philipp
AU  - Sperl P
AD  - Department of Ophthalmology and Optometry, Paracelsus Medical University/SALK,
      Salzburg, Austria.
FAU - Strohmaier, Clemens
AU  - Strohmaier C
AD  - Department of Ophthalmology and Optometry, Paracelsus Medical University/SALK,
      Salzburg, Austria.
FAU - Kraker, Hannes
AU  - Kraker H
AD  - Department of Ophthalmology and Optometry, Paracelsus Medical University/SALK,
      Salzburg, Austria.
FAU - Motloch, Karolina
AU  - Motloch K
AD  - Department of Ophthalmology and Optometry, Paracelsus Medical University/SALK,
      Salzburg, Austria.
FAU - Lenzhofer, Markus
AU  - Lenzhofer M
AD  - Department of Ophthalmology and Optometry, Paracelsus Medical University/SALK,
      Salzburg, Austria.
FAU - Moussa, Sarah
AU  - Moussa S
AD  - Department of Ophthalmology and Optometry, Paracelsus Medical University/SALK,
      Salzburg, Austria.
FAU - Reitsamer, Herbert A
AU  - Reitsamer HA
AD  - Department of Ophthalmology and Optometry, Paracelsus Medical University/SALK,
      Salzburg, Austria.
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Invest Ophthalmol Vis Sci
JT  - Investigative ophthalmology & visual science
JID - 7703701
SB  - IM
MH  - Animals
MH  - Cadaver
MH  - Cataract/*physiopathology
MH  - Cataract Extraction/*methods
MH  - Cats
MH  - Disease Models, Animal
MH  - Intraocular Pressure/*physiology
MH  - Laser Therapy/*methods
MH  - Lasers, Excimer/*therapeutic use
MH  - Monitoring, Intraoperative/*methods
MH  - Swine
MH  - Tonometry, Ocular/*methods
EDAT- 2017/12/21 06:00
MHDA- 2017/12/30 06:00
CRDT- 2017/12/21 06:00
PHST- 2017/12/21 06:00 [entrez]
PHST- 2017/12/21 06:00 [pubmed]
PHST- 2017/12/30 06:00 [medline]
AID - 2667225 [pii]
AID - 10.1167/iovs.17-21948 [doi]
PST - ppublish
SO  - Invest Ophthalmol Vis Sci. 2017 Dec 1;58(14):6457-6461. doi:
      10.1167/iovs.17-21948.