[Intraocular lens implants for macular protection. Nine years of follow-up].

PURPOSE: To evaluate the advantages of macular protection by modifying light transmission of intraocular lenses in cataract surgery.

PATIENTS AND

METHODS

The modified transmission intraocular lens (IOL) blocking the visible spectrum up to 450 nm was used. Forty patients with serous drüsen were operated on with modified transmission IOL as were 40 patients with the same IOL with conventional transmission up to 380 nm. Visual acuity, microperimetry and color vision were recorded for 9 years.

RESULTS

The visual acuity in the modified transmission group improved one line or more than in the other group with conventional transmission. The risk of exudative macular degeneration was 12% in the modified transmission group and 34% in the conventional transmission group.

CONCLUSION

Modifying transmission up to 450 nm seems very important to protect vision in macular degenerative patients.