Intraoperative Refractive Measurements During Iol Reuse For Intrascleral Fixation

 In recent years, cases of dislocated or dropped IOLs have been seen in IOL-implanted eyes. The surgical procedure to remove a deviated or dropped IOL and implant a new IOL is complicated, and postoperative astigmatism may occur. However, since the postoperative refractive values change depending on the anterior chamber depth of the IOL, we measured refractive values intraoperatively with an image guidance system .

Eleven eyes of 11 patients (10 males and 1 female) , mean age 64 ± 8.6 years, who underwent intraoperative scleral IOL fixation surgery to reuse IOL due to IOL fall or dislocation between 2020 and 2022 and whose refraction values were measured intraoperatively with an image guidance system and who could be followed up at least 1 month postoperatively, were evaluated for IOL tilt and subjective refraction at 1 month postoperatively. 

The postoperative refraction of the 11 eyes(10 males and 1 female) at a mean age of 64 ± 8.6 years at 1 month postoperatively was examined based on the IOL slope and subjective refraction values, and the preoperative predicted values.

 In cases axis length were 25.47 ± 1.8 mm and an IOL tilt were 4.16° ± 1.49°. Refractive error differences were 0.69 ± 0.37 D, Five patients (45%) were obtain within the ± 0.5 D refractive error range retrospectively.

We recommend use of an intraoperative image guidance system made it possible to predict postoperative refraction values in limited the types of dropped and dislocated IOLs.