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ORIGINAL ARTICLE
Year : 2019  |  Volume : 31  |  Issue : 1  |  Page : 45-50

Posterior chamber phakic intraocular lenses in refractive surgery: Preoperative profile and postoperative outcomes


Department of Cataract and Refractive Surgery, Chaithanya Eye Hospital and Research Institute, Thiruvananthapuram, Kerala, India

Correspondence Address:
V L Divya
Chaithanya Eye Hospital and Research Institute, Kesavadasapuram, Thiruvananthapuram - 695 004, Kerala
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/kjo.kjo_17_19

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Objective: To assess the pre operative visual, refractive and topographic profile and to analyse postoperative vision, contrast and complications of patients undergoing phakic intraocular lens implantation. Methods: This prospective study enrolled patients that underwent phakic intraocular lens implantation after refractive surgery work up. The corrected pre op and uncorrected post op distance visual acuity, pachymetry, keratometry, topography, white to white, anterior chamber depth, and specular microscopy, along with postoperative anterior chamber angles, corneal and lens status and vaulting of the phakic IOL were recorded at 1 month. Results: 59 eyes of 32 patients with myopia, simple and compound myopic astigmatism underwent posterior chamber phakic IOL. The average sphere corrected was -8.4 D and the average cylinder was -1.5 D with 45.8 +/- 2.2 being the average steep k values. The mean central corneal thickness, WTW and ACD in these patients were 511.9 +/-42,11.44 +/- 0.65 mm, 3.24 +/- 0.33 mm respectively. The average post op UCDVA was 0.1 logmar with most eyes gaining more lines than preop CDVA. The average post op phakic IOL vault wrt the natural lens was 455 micron and average IOP 13.74 +/- 2.8 mmHg. Conclusion: Posterior chamber phakic IOLs are a safe and predictable means of providing good vision especially in high myopes with borderline corneae. Accurate preoperative sizing of the lens is key to optimum results.


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