Dr.Pushpanjali, R16749
Aim:To compare foveal,parafoveal and perifoveal thickness using 3 different SD-OCT systems.
Methods:It was a prospective study where normal subjects age between 20-50 years were included.Subjects
with any ocular surgery, systemic and retinal disease were excluded.All subjects underwent foveal,parafoveal thickness and perifoveal thickness measurement using Optovue OCT,Optovue OCT Angio
and Zeiss OCT.
Results:40 eyes of 20 subjects with mean±Sd age 22.2±1.66 years were included.The foveal and
perifoveal thickness was similar among all three instruments(p>0.05).Parafoveal thickness measured using 3 instruments was similar except superior region (p<0.05).Superior parafoveal thickness was statistically
significantly lower with Zeiss OCT as compared to Optovue OCT Angio however this difference was
clinically insignificant.
Conclusion:Foveal,parafoveal and perifoveal thickness measurements using 3 different OCT systems were similar and these machines can be used interchangeably by clinicians.
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