The effect of trabeculectomy surgery on the central visual field in patients with glaucoma using microperimetry and optical coherence tomography.
Eye (Lond)
; 32(8): 1365-1371, 2018 08.
Article
em En
| MEDLINE
| ID: mdl-29706620
ABSTRACT
PURPOSE:
To determine the functional and structural effects of trabeculectomy surgery on patients with advanced glaucoma and central visual field defects in the early post-operative period.METHODS:
Thirty consecutive adult subjects with advanced glaucoma requiring trabeculectomy surgery and an established visual field defect within 10° of fixation underwent microperimetry (MAIA MP-1, CenterVue, Padova, Italy) and optic disc optical coherence tomography (OCT) imaging (Spectralis, Heidelberg Engineering, Germany) pre-operatively, and 1 month and 3 months following trabeculectomy surgery. Main outcome measures were post-trabeculectomy change in mean threshold on microperimetry and nerve fibre layer thickness on OCT. Fellow eyes were used as controls.RESULTS:
The mean change in MP average threshold values from pre-operative to post-operative was 0.6 ± 1.9 dB for treated eyes and 0.1 ± 1.3 dB for control eyes (p = 0.14) at 1 month and 0.2 ± 2.3 and -0.3 ± 1.6 dB at 3 months (p = 0.22). Mean change in global nerve fibre layer thickness was -0.6 and -0.5 µm for operated and control eyes, respectively (p = 0.83), at 1 month and 0.8 and -0.4 µm at 3 months (p = 0.88). The kappa agreement for structure-function correlation between OCT and MP was 0.735 (confidence interval 0.59-0.88) (p < 0.005).CONCLUSIONS:
Central visual function and retinal nerve fibre layer thickness appear to be preserved in glaucoma patients with central visual field defects undergoing trabeculectomy surgery in the early post-operative period. These data may inform glaucoma surgeons considering trabeculectomy surgery in this patient group.
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Base de dados:
MEDLINE
Assunto principal:
Células Ganglionares da Retina
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Trabeculectomia
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Campos Visuais
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Glaucoma
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Tomografia de Coerência Óptica
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Testes de Campo Visual
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Pressão Intraocular
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article