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Effect of foldable intraocular lens insertion on incision width
Journal of Cataract and Refractive Surgery
|June 1, 1996
Summary
Insertion of foldable intraocular lenses (IOLs) can enlarge surgical incisions. A 3.5 mm incision may be preferable to minimize enlargement during IOL implantation.
Area of Science:
- Ophthalmology
- Surgical Technology
Background:
- Foldable intraocular lenses (IOLs) are commonly implanted using small incisions.
- Understanding incision dynamics during IOL insertion is crucial for surgical outcomes.
Purpose of the Study:
- To evaluate the degree of surgical incision enlargement during the insertion of foldable intraocular lenses (IOLs).
Main Methods:
- Cadaver eyes underwent keratome incisions of 3.0 mm or 3.5 mm.
- Various foldable/injectable IOLs and insertion devices were used.
- External and internal incision widths were measured post-insertion.
Main Results:
- 3.0 mm incisions enlarged externally by 0.10-0.65 mm and internally by 0.50-0.75 mm.
- A forceps-IOL combination necessitated a 3.5 mm incision, causing a 0.4 mm internal enlargement.
Conclusions:
- Surgical incision enlargement occurs with foldable IOL insertion.
- Consideration of 3.5 mm incisions and non-enlarging insertion devices may be beneficial.