Outcomes of Implantable Phakic Contact Lens in High Myopes in a Tertiary Healthcare Center in Western India- Correlation of Central Vault and Intraocular Pressure.

Abstract

Purpose: To evaluate clinical outcomes and corelation of post-operative vault size and intraocular pressure (IOP). Methods: 100 eyes of 50 high myopic patients underwent Implantable phakic contact lenses (IPCL V2.0) implantation using a novel visco-free technique. Both eyes were operated within a span of 1 week using similar technique and by a single surgeon. The clinical outcomes were analysed over 1 month follow up. Statistical Analysis: SPSS Software for Windows (version 18.0, SPSS, Inc). Results: Majority of study population (90 %) had Visual acuity (VA) of > 6/12, whereas 26 patients (52%) had VA of 6/6 in post-operative period. The pre-operative mean spherical equivalent (MSE) was -13.268 + 4.2606 and post-op mean MSE was -0.825 at 1 month follow up. The Pre-operative MSE values differ signicantly from all post-operative MSE values. The IOP analysis displayed comparable mean values for pre-operative and post-operative IOP at day 1, whereas the mean values differed signicantly at day 7 and 1 month. The mean post-operative vault size was 706.42 m (range 401-900 m). There was signicant positive correlation between vault size and MSE whereas there was no signicant correlation between vault and IOP as seen by applying pearson's correlation formula (p value < 0.001) Conclusion: Our study is the rst study of IPCL V2.0 in Western India carried out in a tertiary healthcare hospital using a novel visco-free IPCLimplantation technique. This study shows that Post- operative Vault size is independent of IOPrise and we attribute this rise in IOP majorly to steroid responsiveness in high myopes.