Dr.Sridevi Gunda, G12602
Purpose: To validate and justify the use of ultrasonic A-Scan Biometry to achieve emmetropia post-operatively.
Methods: A retrospective analysis of post operative residual refractive error of 35 patients was done. Standard phacoemulsification procedure with 2.8 mm clear corneal incision was done after IOL power calculation using carefully optimized ultrasonic A-Scan biometry.
Observation & Results: Out of 35 cases, 32 cases had monofocal IOL implanted, 2 had multifocal IOL implanted and 1 had toric IOL implanted. For 34 cases superior clear corneal incision was done. The average ACD was noted to be 3.49mm. AXL ranged from 20.62 to 26.66mm. 3 weeks post operatively, final refraction was done and 31 patients had 0’ spherical error.3 patients had residual error of +0.5D,1 patient had residual error of -1.25D.
Conclusion: A carefully done well optimized biometry can give good results and reduce the need for high end expensive biometers.
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