Presentation on theme: "Anterior Segment OCT Angle and Vault Analysis After Implantable Collamer Lens Implantation in Patients With High Myopia Arturo Ramirez-Miranda M.D. Alejandro."— Presentation transcript:
Anterior Segment OCT Angle and Vault Analysis After Implantable Collamer Lens Implantation in Patients With High Myopia Arturo Ramirez-Miranda M.D. Alejandro Navas M.D., M.Sc. Arturo Gómez-BastarM.D. Enrique O. Graue-Hernandez M.D., M.Sc. Department of Cornea and Refractive Surgery Instituto de Oftalmologia “Fundacion Conde de Valenciana” Mexico City, Mexico Dr. Ramirez-Miranda and Dr. Navas are consultants for Carl Zeiss Meditec. Dr. Ramirez-Miranda is a speaker of Thea Laboratoires. The remaining authors have no financial or proprietary interest in the materials presented herein.
PURPOSE To compare angle measurements before and after ICL V4c Implantation and vault changes during progress and under different light conditions, in patients with high myopia. Visante optical coherence tomography (OCT SA/ Carl Zeiss Meditec)
METHODS Prospective, longitudinal, case series. Implantation of ICL4c. High myopia. 75 eyes (52 patients). AS-OCT VISANTE – (photopic, mesopic and escotopic light conditions)
METHODS Main Outcome Measures Uncorrected visual acuity (UCVA) Best corrected visual acuity (BCVA) Slit lamp examination Optical coherence tomography (OCT) Angle and Vault were evaluated using an OCT Visante.
RESULTS 75 eyes, 52 patients 32 females (69.5 %) Follow-up 13 +/- 3 months Mean age 26.9 +/- 4.8 years Light Conditions Preoperative Angle (°) Postoperative Angle (°) Angle Change(°) p Mesopic54.237.7-16.5<0.05 Photopic53.534.6-18.6<0.05 Escotopic58.439.7-18.7<0.05
DISCUSSION ICL V4c implantation is secure, stable, predictible and effective for correction of high myopia in a 6 month follow up. Greater influence on the vault: ICL size, the anterior chamber depth and a positive correlation with the keratometric mean power
Few studies report the changes presented in iridocorneal angle and vault after ICL V4 implantation measured by OCT-SA Visante and during its follow up. There are no studies that analyzed these changes with ICL V4c model. DISCUSSION
CONCLUSION ICL V4c is a secure, efficient, predictable and stable procedure. There is a significant reduction in the iridocorneal angle after implantation. Inverse relationship between the iridocorneal angle and the achieved vault, accentuated under different light conditions.