1. Endothelial Keratoplasty in Patients With an Anterior Chamber Intraocular Lens: A Montreal Experience Georges M. Durr, MD 1,2 Johanna Choremis, MD, FRCSC 1,2 Michele Mabon, MD, FRCSC 1,2 1 Maisonneuve–Rosemont Hospital Research Center, Montreal, QC, Canada 2 Department of Ophthalmology, University of Montreal, Montreal, QC, Canada

2. Financial interest The authors have no financial interests to disclose

3. Results 9:00 B C C A B A C Table 1 Gender, eye, age, average mean deviation and reason for graft Purpose To evaluate the anatomical and visual success of EK in patients with an ACIOL. Discussion Figure 1 Anterior segment OCT (Visante) with ACIOL No financial interests No funding References 1.Ang M et al Descemet's stripping automated endothelial keratoplasty with anterior chamber intraocular lenses: complications and 3-year outcomes. Br J Ophthalmol. 2014 Mar 27. 2.Elderkin S, et al. Outcome of descemet stripping automated endothelial keratoplasty in patients with an anterior chamber intraocular lens. Cornea. 2010 Nov;29(11):1273-7. 3.Esquenazi S, et al Endothelial survival after Descemet-stripping automated endothelial keratoplasty in eyes with retained anterior chamber intraocular lenses: two-year follow-up. J Cataract Refract Surg. 2011 Apr;37(4):714-9. 4.Gupta PK, et al Early outcomes of descemet stripping automated endothelial keratoplasty in pseudophakic eyes with anterior chamber intraocular lenses. Am J Ophthalmol. 2011 Jan;151(1):24-28. On a sample of 20 patients, the EK was a successful procedure with only 2 grafts needing re-bubbling and resulted in a statistically significant improvement in visual acuity (LogMar VA 1.43±0.91 vs 0.79±0.45; p = 0.003). The grafts remained clear throughout the 1 year follow-up. The mean reduction in endothelial cell count was of 50% at 1-year which is comparable to other studies of EK with an ACIOL 1,3,4. The most interesting result was the AC depth with ACIOL, it was on average 2.1±0.3 mm which is less than what is suggested and reported in the litterature 1,2,3,4. Table 2 Description of AC depth, graft thickness and cell count with average, standard deviation, maximum and minimum Endothelial Keratoplasty in Patients With an Anterior Chamber Intraocular Lens: A Montreal Experience Georges M. Durr, MD 1,2, Johanna Choremis, MD, FRCSC 1,2, Michele Mabon, MD, FRCSC 1,2 1 Maisonneuve–Rosemont Hospital Research Center, Montreal, QC, Canada 2 Department of Ophthalmology, University of Montreal, Montreal, QC, Canada Contact: georges.durr@gmail.com Conclusion Methods 3:00 9:00 12:00 CH 3 12 EK with an ACIOL in place is a safe surgery with good visual acuity results in our sample. This suggests that EK could be successfully performed in patients with an AC depth of less than 2.5 mm. In the future, we will examine to see if there is a correlation between variable AC depths and endothelial cell loss over time. A retrospective chart review was performed. We examined patients that underwent EK for corneal decompensation who had an ACIOL implanted in the past. We gathered demographic data as well as OCT Visante (anterior segment OCT), refractive data and endothelial cell count for all patients included in the study. We also compiled information on complications after EK. Paired student t-tests, average and standard deviations were used for data analysis using Excel 2011. Introduction Patients with anterior chamber intra-ocular lenses (ACIOL) pose a particular challenge when treating corneal decompensation with endothelial keratoplasty (EK). Several factors must be weighed to select adequate candidates for EK including age, time of ACIOL implantation and monophthalmic patients. Few studies have examined the efficacy of EK with ACIOL and have suggested an anterior chamber depth of more than 3 mm 1,2,3,4.