Evaluation Of Change In Contact Of Intraocular Lens With Posterior Capsule Using Intraoperative Spectral-Domain Optical Coherence Tomography
Published 2023 - 41st Congress of the ESCRS
Reference: FP29.12 | Type: Free paper | DOI: 10.82333/y0a4-g186
Authors: Naren Shetty* 1 , POOJA KHAMAR 2 , ABHIJIT SINHA ROY 3 , Reshma Ranade 3 , YASH PATEL 3
1CATARACT AND REFRACTIVE LENS SERVICES ,NARAYANA NETHRALAYA,BENGALURU,India, 2CATARACT AND REFRACTIVE SERVICES ,NARAYANA NETHRALAYA,BENGALURU,India, 3NARAYANA NETHRALAYA,BENGALURU,India
Purpose
To study change in the contact of the IOL with posterior capsule with respect to change in vertical versus horizontal orientation of the haptics of the IOL and before and after implantation of the CTR using intraoperative SD OCT.
Setting
Narayana Nethralaya
Methods
The study comprised of 2 arms including patients who underwent routine clear corneal phacoemulsification procedure with implantation of an extended depth of focus intraocular lens performed by a single experienced surgeon. 50 eyes of 50 patients in arm 1 were imaged using Rescan 700 SD-OCT intraoperatively after implantation of the IOL with haptics oriented horizontally and then vertically. 51 eyes of 51 patients were included in arm 2. These patients were imaged before and after implantation with a CTR, after the placement of IOL in the bag. The vertical height between posterior surface of lens capsule and posterior surface of IOL was measured and compared.
Results
In arm 1, vertical height between posterior surface of lens capsule and the IOL reduced significantly when haptics were oriented vertically as compared to horizontally. This difference was found on analysing both the vertical as well as horizontal axis scans. In arm 2, a significant reduction in vertical height between the IOL and the capsule was found post CTR implantation (p-value < 0.001) across all 3 sizes (11,12,13mm) of CTR used which was highest with the CTR size 13 mm and lowest with CTR size 11 mm.
Conclusions
We found a greater contact between the posterior capsule and the IOL with the haptics of the IOL oriented vertically and also after implantation of CTR. An improved contact between posterior capsule and the IOL could positively impact refractive stability and capsular biocompatibility.