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REVIEW ARTICLE
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Toric intraocular lens: A literature review


1 Cataract and Glaucoma Services, Sankara Eye Hospital, Coimbatore, Tamil Nadu, India
2 Sankara Eye Hospital, Coimbatore, Tamil Nadu, India

Correspondence Address:
Mithun Thulasidas,
Cataract and Glaucoma Services, Sankara Eye Hospital, Sathy Road, Sivanandapuram, Coimbatore - 641035, Tamil Nadu
India
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/tjo.tjo_43_21

Toric intraocular lenses (IOLs) are universally recommended in cataract cases with preoperative corneal astigmatism ≥1.5 D. An optimal surgical outcome depends on careful patient selection, complete preoperative evaluation, accurate IOL power calculation, precise marking of the axis, meticulous intraoperative approach, and methodical postoperative care. Understanding the importance of posterior corneal astigmatism, surgically induced astigmatism, and effective lens position in IOL power calculation and newer techniques to measure them directly have resulted in better postoperative refractive outcomes. We present a brief overview of toric IOLs along with the preoperative evaluation, IOL power calculation, different marking methods, intraoperative approach, and postoperative outcomes. Functional and anatomical outcomes, including uncorrected visual acuity, residual refractive astigmatism, and postoperative IOL misalignment, which have been reported for both toric IOLs and multifocal toric IOLs, are reviewed.


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    -  Thulasidas M
    -  Kadam A
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