Skip to main content
main-content

26.04.2018 | Clinical Investigation | Ausgabe 4/2018

Japanese Journal of Ophthalmology 4/2018

Evaluation of corneal biomechanics in patients with keratectasia following LASIK using dynamic Scheimpflug analyzer

Zeitschrift:
Japanese Journal of Ophthalmology > Ausgabe 4/2018
Autoren:
Ryotaro Ueki, Naoyuki Maeda, Mutsumi Fuchihata, Tomoko Asai, Shizuka Koh, Hisataka Fujimoto, Masafumi Uematsu, Kohji Nishida
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s10384-018-0594-5) contains supplementary material, which is available to authorized users.

Abstract

Purpose

To investigate the corneal biomechanics in eyes with keratectasia following LASIK using a dynamic Scheimpflug analyzer.

Design

Case–Control study.

Method

The subjects in the study included 12 eyes with keratectasia after LASIK (KE), 24 eyes with keratoconus (KC), 17 eyes without keratectasia after LASIK (LASIK), and 34 eyes with normal corneas (Normal). Corneal biomechanics of the four groups were evaluated using a dynamic Scheimpflug analyzer.

Results

Compared with Normal (7.06 ± 0.54), the radius at the highest concavity (radius, mm) of LASIK (5.96 ± 0.76), KE (4.93 ± 0.61) and KC (5.39 ± 1.02) were significantly small. The Deflection Amplitude (HCDLA, mm) of Normal (0.94 ± 0.07) was significantly lower than those of KE (1.11 ± 0.10) and KC (1.06 ± 0.16), and was not significantly different from that of LASIK (0.98 ± 0.07). There were significant differences between LASIK and KE in radius and HCDLA (P < 0.05), whereas KE and KC had no differences in these parameters.

Conclusions

Corneal biomechanical features evaluated using the dynamic Scheimpflug analyzer suggest that biomechanical properties in eyes with keratectasia, keratoconus, and LASIK are different from those of normal eyes. Although the biomechanics in eyes with keratectasia differs from that in eyes with LASIK, it is similar to that in eyes with keratoconus.

Bitte loggen Sie sich ein, um Zugang zu diesem Inhalt zu erhalten

★ PREMIUM-INHALT
e.Med Interdisziplinär

Mit e.Med Interdisziplinär erhalten Sie Zugang zu allen CME-Fortbildungen und Fachzeitschriften auf SpringerMedizin.de. Zusätzlich können Sie eine Zeitschrift Ihrer Wahl in gedruckter Form beziehen – ohne Aufpreis.

Jetzt bestellen und im ersten Jahr 100€ sparen!Jetzt e.Med zum Sonderpreis bestellen!

Zusatzmaterial
Supplementary material 1 (MPG 1324 kb) A representative video display of the dynamic Scheimpflug analyzer. From the upper image, a normal eye, a LASIK eye without keratectasia, a LASIK eye with keratectasia, and a keratoconus eye are shown
10384_2018_594_MOESM1_ESM.mpg
Literatur
Über diesen Artikel

Weitere Artikel der Ausgabe 4/2018

Japanese Journal of Ophthalmology 4/2018 Zur Ausgabe


 

Neu im Fachgebiet Augenheilkunde

Bildnachweise