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:: Volume 25, Issue 2 (Iranian Journal of Ophthalmology 2013) ::
2013, 25(2): 107-114 Back to browse issues page
Measurement of Normal Macular Thickness using Cirrus Optical Coherence Tomography Instrument in Iranian Subjects with Normal Ocular Condition
Hooshang Faghihi Dr., Shaahin Faghihi Dr., Fariba Ghassemi Dr., Alireza Lashay Dr., Hassan Hashemi Dr., Fedra Hajizadeh Dr. * , Mehdi Khabazkhoob
, fhajizadeh@noorvision.com
Abstract:   (9219 Views)

Purpose : To describe the macular thickness map of Iranian adult with normal retinal status as measured by Cirrus’ optical coherence tomography (OCT) instrument

Methods : In this cross-sectional study, one eye of subjects with normal ocular examination and retinal status of at least one eye were recruited. The 512×128-scan pattern and scan area of 6×6 mm2 with software version 4 protocol in Cirrus OCT apparatus were used for data acquisition and analysis.

Results : A total of 98 individuals participated in this study. 45.9% of the participants (i.e., 45 subjects) were male. The mean age of the subjects was 49.55±16.31 years ranging from 23 to 80 years. The mean central subfield thickness (CST) was 251.39±20.57 µm which is the thinnest part. The mean CST in men and women were 259.33±21.26 µm and 244.64±17.48 µm, respectively (p<0.001). The thickest part of macula was located in the foveonasal area with a measurement of 320.2±14.54 µm. There was not any significant correlation among age (p=0.207), gender (p=0.290), and the CST. The nasal, superior, inferior, and temporal parts of macula, consecutively, exhibited a decrease in macular thickness. The mean macular volume was 9.95±0.49 mm3 (i.e., 10.05±0.54 mm3 in men and 9.86±0.41 mm3 in women, respectively). There is, however, a statistically-significant correlation between age and the macular volume (p<0.001). With every one year increase in age, there was a 0.012 mm3 decrease in macular volume. The average retinal thickness was 277.58±11.55 µm. Additionally, there is a significant correlation between age and average thickness (p<0.001) from statistical point of view. With every one year increase in the age, there was a 0.266 µm decrease in the average thickness.

Conclusion : The thickest part of the macula was located in the foveonasal area with a measurement of 320 µm while the thinnest part was in the central subfield area with a measurement of 251 µm. The nasal, superior, inferior, and temporal parts of macula, consecutively, exhibited a decrease in macular thickness. In younger adults and among males, the mean thickness was greater.

  

Iranian Journal of Ophthalmology 201325(2):107-114 © 2013 by the Iranian Society of Ophthalmology

Keywords: Macular Thickness Map, Optical Coherence Tomography, Central Subfield Thickness, Macular Volume
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Type of Study: Original | Subject: Vitreoretinal
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Faghihi H, Faghihi S, Ghassemi F, Lashay A, Hashemi H, Hajizadeh F et al . Measurement of Normal Macular Thickness using Cirrus Optical Coherence Tomography Instrument in Iranian Subjects with Normal Ocular Condition. Iranian Journal of Ophthalmology. 2013; 25 (2) :107-114
URL: http://irjo.org/article-1-809-en.html


Volume 25, Issue 2 (Iranian Journal of Ophthalmology 2013) Back to browse issues page
مجله چشم پزشکی ایران Iranian Journal of Ophthalmology
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