Journals / Glokom Katarakt / 2008 / Cilt: 3 - Sayı: 3

Comparison of intraocular pressure measurements from peripheral and central cornea after LASIK procedure

LASIK sonrası periferik ve santral corneadan alınan göz içi basınç ölçümlerinin karşılaştırılması

Pages
186–189
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

According to the results of this study, we recommend measurement of peripheral corneal pressure with Tono-Pen for the patients that received LASIK procedure to provide appropriate follow-up for the patients with glaucoma.

📌 3 Key Takeaways

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Objective & Hypothesis:Purpose: To measure intraocular pressure with TonoPen from peripheral and central cornea of the patients who underwent Laser In Situ Keratomileusis (LASIK) for their myopia and to compare the results with central corneal thickness to find the most appropriate intraocular pressure measurement technique.
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Key Findings & Data:Materials and Methods: 140 eyes from 82 patients that underwent LASIK procedure between July 1999 and January 2000 were included.
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Conclusion & Impact:According to the results of this study, we recommend measurement of peripheral corneal pressure with Tono-Pen for the patients that received LASIK procedure to provide appropriate follow-up for the patients with glaucoma.
🔬Design:Research Article
📍Scope:2000 Verileri
⚙️Variables:Karşılaştırmalı çalışma · Göz içi basınç · Miyopi

Abstract

Purpose: To measure intraocular pressure with TonoPen from peripheral and central cornea of the patients who underwent Laser In Situ Keratomileusis (LASIK) for their myopia and to compare the results with central corneal thickness to find the most appropriate intraocular pressure measurement technique. Materials and Methods: 140 eyes from 82 patients that underwent LASIK procedure between July 1999 and January 2000 were included. Intraocular pressure measurements with TonoPen were recorded from both peripheral (TonP) and central (TonC) cornea. Ultrasonic pachymeter and keratometer were used for corneal thickness and refractive measurements. Collected data before and after the procedures were recorded and compared. Results: There were 48 (58.5%) female and 34 (41.5%) male patients aged 20 to 51 years (mean 30.85±7.79). LASIK procedure decreased intraocular pressure levels for both peripheral and central corneal measurements. Pressure levels were as follows: Preoperative 13.34±1.49 mmHg and postoperative 11.98±1.59 mmHg with TonC (p<0.0001) and preoperative 13.52±1.48 and postoperative 13.37±1.58 mmHg with TonP (p<0.01). Intraocular pressure measurements with TonC were significantly lower, however, TonP measurements revealed only small decrements. Additionally, we found a correlation between the decreased intraocular pressures levels and central corneal thickness and keratometric values (r>0.434, p<0.0001 respectively). The most significant correlation was found to be between TonP measurements and corneal thickness and keratometric values (r>0.74, p<0.0001 respectively). Discussion: LASIK procedure significantly decreased intraocular pressure levels measured with both TonC and TonP, however, decrease observed with TonP was much smaller than TonC. According to the results of this study, we recommend measurement of peripheral corneal pressure with Tono-Pen for the patients that received LASIK procedure to provide appropriate follow-up for the patients with glaucoma.

Özet

Amaç: Laser İn Situ Keratomileusis (LASIK) ile tedavi edilen miyopik gözlerde ameliyat öncesinde ve sonrasında TonoPen ile periferik ve santral korneadan (TonP=periferik ve TonS=santral) göz içi basıncı (GİB) ölçümleri alınıp, santral kornea kalınlığı ile karşılaştırmalı en doğru GİB ölçüm tekniğini bulmak. Gereç ve Yöntem: Temmuz 1999 ile Ocak 2000 tarihleri arasında LASIK uygulanan 82 hastanın toplam 140 gözü çalışma kapsamına alındı. Bütün hastalarda TonoPen ile GİB ölçümleri yapıldı. TonoPen ile ölçümler korneanın periferinden ve santralinden ayrı ayrı yapıldı. Ultrasonik Pakimetri ile hastaların santral kornea kalınlıkları (SKK) ve keratometri ile kornea kırıcı gücü ölçüldü. Bütün veriler, ameliyat öncesi ve sonrasında tekrarlanarak karşılaştırıldı. Sonuç: Hastaların 48‘i kadın, 34’ü ise erkekti. Hastaların yaşları 20 ile 51 yaş arasında, ortalama 30.85±7.79 idi. LASIK sonrasında gerek periferik korneadan gerekse santral korneadan yapılan ölçümlerde GİB değerlerinde düşme gözlendi. Buna göre GİB değerleri; TonS ile ameliyat öncesi 13.34±1.49 mmHg iken ameliyat sonrası 11.98±1.59 mmHg (p 0.434 , p 0.74 , p<0.0001 herbiri için). Tartışma: LASIK işleminden sonra TonS ile ölçülen GİB’ları belirgin şekilde düşük çıktı. Bununla birlikte TonP ile çok daha minimal bir düşüş gözlendi. Glokom hastalığının erken teşhis, tedavi ve izlenmesi açısından, LASIK operasyonu geçirmiş gözlerde Tono-Pen ile periferik korneadan yapılacak GİB ölçümlerinin gerekli olduğu kanısına varıldı.

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Cite This Article

ŞENTUT, S., YILMAZ, S., MADEN, A. (2008). Comparison of intraocular pressure measurements from peripheral and central cornea after LASIK procedure. Glokom Katarakt, Cilt: 3 - Sayı: 3, 186–189. https://ajindex.com/articles/226872

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