COMPARISON OF CORNEAL PACHYMETRY CHANGES AND SURGICALLY INDUCED ASTIGMATISM OF MICROCOAXIAL PHACOEMULSIFICATION SURGERY AND COAXIAL PHACOEMULSIFICATION SURGERY

DOI: 10.26650/IUITFD.396179 Objective: This study aimed to evaluate the corneal pachymetry changes and surgically induced astigmatism (SIA) values in microcoaxial phacoemulsification surgery with a 2.2 mm incison and to compare those of the standard coaxial phacoemulsification surgery with a 2.75 mm and 3.2 mm incision. Materials and Methods: The medical records of 39 cases who underwent cataract surgery were retrospectively evaluated. There were 15 eyes in the microcoaxial surgery group and 24 eyes in the standard coaxial surgery group. The preoperative and postoperative 1-month corneal topographies of the cases were analysed with a Pentacam Scheimpflug camera (OCULUS Inc., Germany). The astigmatism and pachymetry values in the Pentacam difference map were compared. Surgically induced astigmatism values were calculated with a vectorial analysis programme. Results: The SIA calculated with the vectorial analysis programme on the postoperative at 1 month was 0.55±0.37 D in the microcoaxial surgery group and 0.53±0.24 D in the coaxial surgery group (p=0.743). The astigmatism in the Pentacam difference map is 0.41±0.62 D in the microcoaxial surgery group and 0.44±0.40 D in the coaxial surgery group (p=0.578). Postoperative visual acuity at 1 week was significantly higher in the microcoaxial group (p=0.004). The corneal thickness decreased by/6.47±21.16 microns in the microcoaxial group and increased by/ 12.62±30.01 microns in the coaxial group (p=0.004). Conclusion: The postoperative 1 month SIAs of the groups are similar to the values of previous studies but there isn’t any significant difference between groups. Postoperative visual rehabilitation is provided earlier in the microcoaxial surgery group