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Clinical results after spherotoric intraocular lens implantation using the bag-in-the-lens technique
Marie-José Tassignon1, Laure Gobin, Danny Mathysen
1Department of Ophthalmology, Antwerp University Hospital, and Faculty of Medicine, Antwerp University, Antwerp, Belgium. marie-jose.tassignon@uza.be
Purpose:
To evaluate the clinical results after implantation of a spherotoric intraocular lens (IOL) using the bag-in-the-lens (BIL) technique.
Setting:
Antwerp University Hospital, Department of Ophthalmology, Antwerp, Belgium.
Design:
Evidence-based manuscript.
Methods:
Consecutive eyes with cataract and corneal astigmatism had implantation of a spherotoric BIL intraocular lens (IOL). The IOL was centered based on the patient's pupillary entrance using Purkinje reflexes of the surgical microscope light.
Results:
The study enrolled 52 eyes of 35 patients (23 women) with corneal astigmatism ranging from 0.90 to 6.19 diopters (D). The toric power was between 1.00 D and 8.00 D. One-third of eyes had an additional ocular comorbidity (including amblyopia) that could influence the clinical outcomes; 5.2% had an irregular astigmatism up to 15 degrees. Twelve eyes had high myopia (axial length [AL] >26 mm) and 5 eyes, high hyperopia (AL <21 mm). The mean preoperative corrected distance visual acuity was 0.58 ± 0.25 (SD). Postoperatively, the uncorrected distance visual acuity (UDVA) was 0.5 or better in 92% of eyes, the mean UDVA was 0.85 ± 0.21 D, the mean magnitude of error was 0.05 ± 0.49 D, and the mean angle of error was 0.29 ± 0.89 degree. Astigmatism correction was successful in 82% of eyes.
Conclusion:
Spherotoric BIL IOL implantation yielded outcomes similar to those with other spherotoric IOLs, even in eyes with ocular comorbidity or irregular astigmatism up to 15 degrees.