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Change in intraocular pressure measurement after myopic LASEK: a study evaluating Goldmann, Pascal and applanation resonance tonometry
Umeå universitet, Medicinska fakulteten, Institutionen för klinisk vetenskap, Oftalmiatrik.
Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Radiofysik.ORCID-id: 0000-0003-2055-576X
Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Radiofysik.
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2012 (Engelska)Ingår i: Journal of glaucoma, ISSN 1057-0829, E-ISSN 1536-481X, Vol. 21, nr 4, s. 255-259Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

PURPOSE: To prospectively evaluate 3 tonometry methods-the gold standard, Goldmann applanation tonometry, a new method, Pascal dynamic contour tonometry (PDCT), and a method under development, applanation resonance tonometry (ART)-with respect to intraocular pressure (IOP) measurements before, 3 and 6 months after laser-assisted subepithelial keratectomy (LASEK).

MATERIALS AND METHODS: One randomly assigned eye of each of 53 healthy individuals, who underwent LASEK surgery for myopia was studied. Visual acuity, central corneal thickness, corneal curvature, and IOP were measured at each visit. Six IOP measurements/methods with 5 minutes pause between methods were performed.

RESULTS: All tonometry methods measured a significantly lower IOP after LASEK correction by a mean of -3.1 diopters. The IOP reduction was largest after 6 months for Goldmann applanation tonometry (-1.7±1.8 mm Hg) followed by ARTstat (-1.2±1.5 mm Hg), PDCT (-1.1±1.6 mm Hg), and ARTdyn (-1.0±1.5 mm Hg). The reduction of IOP did not differ significantly between different methods (P=0.11). There was a significant further reduction of measured IOP for PDCT between 3 and 6 months (-0.5±1.0 mm Hg). Uncorrected visual acuity improved significantly between 3 and 6 months postoperatively from 1.32±0.28 to 1.43±0.27.

CONCLUSIONS: All tonometry methods measured a significant, but low, reduction of IOP 3 and 6 months after LASEK. Further change in visual acuity and IOP measurements between 3 and 6 months suggest a still ongoing postoperative process.

Ort, förlag, år, upplaga, sidor
Lippincott Williams & Wilkins , 2012. Vol. 21, nr 4, s. 255-259
Nyckelord [en]
LASEK, Goldmann applanation tonometry, dynamic contour tonometry, intraocular pressure, applanation resonance tonometry
Nationell ämneskategori
Oftalmologi
Forskningsämne
oftalmiatrik
Identifikatorer
URN: urn:nbn:se:umu:diva-45249DOI: 10.1097/IJG.0b013e31820719c8ISI: 000302382100009PubMedID: 21654513OAI: oai:DiVA.org:umu-45249DiVA, id: diva2:427943
Tillgänglig från: 2011-06-29 Skapad: 2011-06-29 Senast uppdaterad: 2018-06-08Bibliografiskt granskad

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Jóhannesson, GautiHallberg, PerEklund, AndersLindén, Christina

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Journal of glaucoma
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