Macular Gradient Measurement in Myopic Posterior Staphyloma Using Optical Coherence Tomography
Korean Journal of Ophthalmology
;
: 243-247, 2011.
Article
Dans Anglais
| WPRIM
| ID: wpr-125052
ABSTRACT
PURPOSE:
To evaluate clinical characteristics and the macular gradient in myopic posterior staphyloma with time domain (TD) optical coherence tomography (OCT).METHODS:
Sixty-four staphyloma eyes of 40 patients were examined. Macular gradient (tangent theta) and the location of staphyloma were assessed with OCT imaging. The macular gradient was measured at points 1 mm and 2 mm distant from the fovea. The relationships of the macular gradient with age, axial length, and spherical equivalent were analyzed.RESULTS:
In 8 eyes (12.5%), the bottoms of the staphylomas were in the fovea, and there was no macular gradient. However, in the other 56 eyes (87.5%), the bottoms of the staphylomas were not in the foveal area, and macular gradients existed. Staphylomas were commonly located in the infero-nasal retinal area. The mean macular gradient (tangent theta) was 0.26 +/- 0.08 at 1 mm distance from the fovea and 0.28 +/- 0.10 at 2 mm. No significant relationships were observed between macular gradient and axial length, patient age, or spherical equivalent.CONCLUSIONS:
TD OCT reveals staphyloma location. If the location is outside of the fovea, a macular gradient exists and can be measured by OCT. Axial length measurement error may occur in eyes with poor visual fixation and steep macular gradients.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Indice de gravité de la maladie
/
Maladies de la sclérotique
/
Études rétrospectives
/
Études de suivi
/
Évolution de la maladie
/
Tomographie par cohérence optique
/
Myopie dégénérative
/
Macula
Type d'étude:
Étude observationnelle
/
Étude pronostique
Limites du sujet:
Femelle
/
Humains
/
Mâle
langue:
Anglais
Texte intégral:
Korean Journal of Ophthalmology
Année:
2011
Type:
Article
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