The role of preoperative Pentacam in optimizing visual outcome after cataract surgery

Abstract

Objective To evaluate the role of preoperative Pentacam in optimizing visual outcome after cataract surgery. Background It has been suggested that Pentacam gives comprehensive data about preoperative astigmatism, lens density, and refractive power helping in optimizing the visual outcome after cataract surgery. Patients and methods Preoperatively, the patients were subjected to careful history taking, thorough ocular examination including assessment of manifest refraction, measurement of logMAR uncorrected distance visual acuity, and corrected distance visual acuity, biometry and keratometry with the Intraocular lens (IOL) Master partial coherence interferometry device, corneal topography (Pentacam) and to exclude irregular astigmatism, mean lens density, and cataract grading score were evaluated. Slit lamp examination, dilated funduscopy under pharmacological, intraocular pressure, and Hoffer Q formula was used in eyes with an axial length shorter than 22 mm, and SRK/T formula was used for all other cases. Cataract surgery were performed according to the standard protocols. Postoperative manifest refraction (sphere and cylinder) and visual acuity (uncorrected and corrected) were obtained. Results There was significant improvement of astigmatism postoperatively. Also, there were significant improvements of UCVA and BCVA in postoperative assessment as compared with preoperative evaluation. Conclusion Preoperative Pentacam can help in the improvement of preoperative astigmatism. It also resulted in the improvement of Uncorrected visual acuity (UCVA) and Best corrected visual acuity (BCVA).