Materials and methods: Thirty- two patients who had underwent combined phacoemulsification pars plana vitrectomy silicone injection surgery was included in the study. The healthy eye biometrics were used for intraocular lens power selection. Refraction results were obtained after silicone oil removal. Mann-Whitney U test was used to compare the expected refraction values in healthy eye measurements and the resulting refraction values of the operated eye.

Results: There was a significant increase in visual acuity after surgery (1.2 ± 0.48 logMar, 0.6 ± 0.41, p = 0.001, p <0.05). There was no significant difference in terms of keratometry values before and after the operation (43.12 ± 2.25, 43.84 ± 1.19, p = 0.24, p> 0.05). There was no significant difference between the expected refraction value of the healthy eye and the result refraction value of the operated eye (p = 0.35, p> 0.05).

Conclusion: Biometric values of the healthy eye can be used for IOL implantation in the presence of a cataract with macula-off retinal detachment. Keywords : Vitrectomy, phacoemulsification, cataract, silicones, biometry