Abstract
Purpose:
To evaluate the influence of cataract surgery on the central choroidea and vitreomacular interaction using two different OCT devices.
Methods:
We evaluated 33 eyes of 33 patients, 23 patients showing normal retinal architecture and 10 patients with diagnosis of age-related macular degeneration (AMD). All patients were scheduled for cataract surgery. The patients underwent spectral-domain (Spectralis-SD-OCT) and swept-source (SS-Topcon DRI) OCT measurements. 6x6mm (20°x20°) volume and 8.9mm line scans with SD-OCT using the enhanced depth imaging (EDI) mode for the visualization of the choroid. 6x6mm (512x64) and 12mm scans were performed using SS-OCT. Measurements were done before cataract surgery, one day, one week and one month thereafter.
Results:
We included 23 patients with normal fundus and mean age of 66±8.4 years and 10 patients with AMD and mean age of 76±11.5. Preoperative central choroidal volume (CCV) in patients with normal fundus was 0.21±0.06/0.20±0.06mm3 (SD/SS-OCT), 0.19±0.05/0.19±0.05mm3 one day after surgery, 0.19±0.05/0.19±0.05mm3 after one week and 0.20±0.06/0.21±0.07mm3 after one month, respectively (p>0.05). No significant changes were found regarding CCV after cataract surgery at each time point (p>0.05). AMD group showed a mean CCV of 0.16±0.05/0.16±0.07mm3 preoperative, 0.16±0.05/0.16±0.07mm3 one day after surgery, 0.16±0.05/0.15±0.05mm3 one week and 0.15±0.05/0.16±0.05mm3 after one months. The CCV was significant thinner in the patients with AMD (p=0.03), however, no significant different changes were observed after cataract surgery in this group and between the two devices (p>0.05). Preoperative, vitreomacular adhesion (VMA) was observed in 38%, vitreomacular traction (VMT) in 6%, macular vitreous detachment (MVD) in 13% and posterior vitreous detachment (PVD) in 41%. After one month VMA was seen in 33%, VMT in 4%, MVD in 22% and PVD in 41% with both SS and SD-OCT evaluations being identical.
Conclusions:
Successful cataract surgery does not seem to have an influence on CCV. Spectralis and Topcon devices show comparable outcomes concerning evaluation of central choroidea and vitreomacular interaction.
Keywords: 452 choroid •
552 imaging methods (CT, FA, ICG, MRI, OCT, RTA, SLO, ultrasound) •
445 cataract