Clinical Study
Eye (2005) 19, 72–76. doi:10.1038/sj.eye.6701400 Published online 23 April 2004
Macular thickness in patients with choroidal neovascularization determined by RTA and OCT3: Comparative results
J A Montero1 and J M Ruiz-Moreno1,2
- 1Instituto Oftalmológico, de Alicante Vitreo-Retinal Unit, Alicante, Spain
- 2Department of Ophthalmology, Miguel Hernández University, School of Medicine, Alicante, Spain
Correspondence: JA Montero, Instituto Oftalmológico, de Alicante, Avenida de Denia 111, 03015, Alicante, Spain. Tel: +34 902 33 33 44; Fax: +34 902 33 33 44; E-mail: msm02va@wanadoo.es
Received October 2003; Accepted 20 October 2003; Published online 23 April 2004.
Abstract
Aims
The authors conducted a study to compare retinal thickness in patients with choroidal neovascularization (CNV) using optical coherence tomography (OCT) and retinal thickness analyser (RTA).
Methods
In all, 11 eyes from 11 patients with subfoveal choroidal neovascularization were examined with OCT and RTA.
Results
Three patients could not be explored by RTA due to lack of fixation and high myopia. The mean foveal thickness was 289.9
92.1 
m with OCT and 207.760.8 m with RTA. The mean perifoveal thickness was 293.846.3 m and 200.861.3 m, respectively. The maximal perifoveal thickness measured by OCT was 335104.0 m and 31686.8 m by RTA.
Conclusion
OCT and RTA are able to detect increases in retinal thickness due to the presence of CNV and of fluid extravasation. They can be used in measuring retinal thickness in patients with CNV, although measures are not comparable between both systems.
Keywords:
retinal thickness analyser, optical coherence tomography, choroidal neovascularization
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