Two different microscope integrated intra-operative spectral domain optical coherence tomography for cataract surgery: uses and applications

Session Details

Session Title: Cataract Surgery Equipment. Cataract Surgery Outcomes

Session Date/Time: Monday 07/09/2015 | 16:30-18:30

Paper Time: 17:46

Venue: Main Auditorium

First Author: : M.Kurian INDIA

Co Author(s): :    S. Das   M. Thakkar   A. Sinha Roy   D. Haria   V. Kharbanda   R. shetty     

Abstract Details

Purpose:

To discuss various applications, some novel, of two Microscope integrated intra operative Spectral Domain Optical Coherence Tomography (SD-OCT) to improve safety and visual outcomes in cataract surgery.

Setting:

Narayana Nethralaya, Bangalore, India

Methods:

Intra-Operative OCT was performed using two Microscope integrated SD-OCT machines - RESCAN 700 (Carl Zeiss Meditec.) and Bioptigen (Bioptigen Inc., Durham, North Carolina, USA). Thirty Eight eyes of 38 patients underwent either manual micro-coaxial cataract surgery (MICS) or Femtosecond laser assisted cataract surgeries (FLACS). It was nonrandomized and sequential with patients being assigned to either group based on their choice. Continuous SD-OCT video imaging was done during all steps and high resolution still images were taken at crucial steps such as immediately after entry into anterior chamber,following capsulorrhexis,during trenching,following implantation of the intraocular lens,and after hydration of clear corneal wounds.

Results:

26 eyes underwent Manual MICS and 12 eyes underwent FLACS. The quality and multi-planar construction of the wounds, the margin of the anterior capsule rhexis, the end point for stromal hydration for adequate wound closure, evaluation of adequate depth during trenching to aid in cracking the nucleus, as well as lack of apposition of posterior surface of intraocular lenses made of various materials with the posterior capsule were clearly visualized. Both MICS as well FLACS wounds were comparable in geometry with similar quantity of hydration being required for adequate wound closure. Hydrophobic IOLs did not demonstrate any bio-adhesiveness intraoperatively

Conclusions:

Intraoperative SD OCT integrated with the operating microscope is an interesting new technology which would help us in real time in-vivo assessment of cataract surgery thereby helping us to optimize our outcomes. Additionally, it also has a tremendous use as a research and teaching tool.

Financial Interest:

NONE