Measurement of subfoveal choroidal thickness in normal-tension glaucoma in Korean patients.
OBJECTIVE
To evaluate subfoveal choroidal thickness (CT) in eyes with normal-tension glaucoma (NTG) in patients who were visualized by enhanced depth imaging optical coherence tomography.


METHODS
In this observational, comparative case series, subfoveal CT was measured with enhanced depth imaging optical coherence tomography in 35 eyes of normal individuals and 32 eyes of patients with NTG. Subfoveal CT in each eye was analyzed by measuring the vertical distance from Bruch membrane to the innermost sclera layer.


RESULTS
The mean subfoveal CT in the normal individual group and the NTG patient group were 300.0±52.7 and 289.5±100.4 µm, respectively. There was no difference in subfoveal CT in the 2 groups (P=0.60). The mean subfoveal CT in all subjects was significantly correlated negatively with age only (P=0.03).


CONCLUSIONS
The subfoveal CT does not differ between the eyes of the normal individual group and the eyes in the NTG patient group, suggesting that CT may not play a role in the pathogenesis of NTG.
*Institute of Ophthalmology and Optometry †Department of Ophthalmology, Ewha Womans University School of Medicine, Seoul, Republic of Korea.
Jin Young
JY
Rhew
Yun Taek
YT
Kim
Kyu Ryong
KR
Choi
D000328:Adult; D000368:Aged; D044466:Asian People; D002829:Choroid / Q000473:pathology*; D005260:Female; D005584:Fovea Centralis; D064368:Healthy Volunteers; D006801:Humans; D007429:Intraocular Pressure; D057066:Low Tension Glaucoma / Q000453:epidemiology / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D009929:Organ Size; D056910:Republic of Korea / Q000453:epidemiology; D041623:Tomography, Optical Coherence; D014792:Visual Acuity