Dr. PRIYADARSHI GUPTA

Dr.Meenakshi Thakar, Dr.Ketaki Rajurkar, Dr. SHANTANU GUPTA

Abstract

Purpose- To analyze foveal avascular zone(FAZ) superficial(s) and deep(d) area and dimensions using optical coherence tomography angiography(OCTA) in healthy Indian eyes and to assess effect of age, gender, axial length(AL), central foveal thickness(CFT), central choroidal thickness(CCT) on FAZ.

Methods- A observational cross sectional study involving 200 healthy eyes in age group 20-60 years having best corrected visual acuity(BCVA) better than 6/12 snellen’s with no systemic illness or past intraocular surgery was done. FAZ parameters were calculated using OCTA and the same was evaluated for any correlation with different ocular parameters mentioned above.

Results- dFAZ area was larger than sFAZ being 0.56±0.12 and 0.42±0.13 mm2 respectively. Females had larger FAZ than males. AL and CFT had negative while CCT had a positive correlation with FAZ. Age did not influence FAZ.

Conclusion- sFAZ and dFAZ varied significantly in healthy eyes. Gender, AL, CFT influence FAZ but not the age.