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Usefulness of Implantation of Diffractive Multifocal Intraocular Lens in Eyes with Long Axial Lengths.

Ogawa T, Shiba T, Tsuneoka H - J Ophthalmol (2015)

Bottom Line: Results.For near VA, the corresponding uncorrected VA was 0.06 ± 0.08 and 0.05 ± 0.09; and distance-corrected VA was 0.01 ± 0.06 and 0.01 ± 0.02, with no significant differences between two groups (p = 0.572, and 0.157; Mann-Whitney U test).Conclusion.

View Article: PubMed Central - PubMed

Affiliation: Department of Ophthalmology, The Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo 105-0003, Japan.

ABSTRACT
Purpose. This study retrospectively analyzed the postoperative visual functions of myopic eyes implanted with multifocal intraocular lens (IOL) to evaluate the efficacy of multifocal IOL in highly myopic eyes. Methods. We studied 61 patients (96 eyes) who were implanted with multifocal IOL ZMA00 or ZMB00 (Abbott Medical Optics). The patients were stratified into two groups by axial length: 26 mm or above (AL ≥ 26 group) and below 26 mm (AL < 26 group). Postoperative corrected and uncorrected distance (5 m) and near (30 cm) visual acuity (VA), contrast sensitivity, and depth of focus were compared between two groups. Results. In the AL ≥ 26 group and the AL < 26 group, the mean ± standard deviation uncorrected distance logMAR VA at 12-month postoperative follow-up was -0.04 ± 0.11 and -0.01 ± 0.14, respectively; and the corrected distance VA was -0.17 ± 0.08 and -0.14 ± 0.07, with no significant differences between two groups (p = 0.558 and 0.101; Mann-Whitney U test). For near VA, the corresponding uncorrected VA was 0.06 ± 0.08 and 0.05 ± 0.09; and distance-corrected VA was 0.01 ± 0.06 and 0.01 ± 0.02, with no significant differences between two groups (p = 0.572, and 0.157; Mann-Whitney U test). Conclusion. The present study demonstrates that it is possible to achieve good uncorrected near and distance VA following implantation of multifocal IOL in eyes with long axial lengths.

No MeSH data available.


Related in: MedlinePlus

Defocus curves. (a) Eyes were divided into axial length of 26 mm or longer (AL ≥ 26 group) and less than 26 mm (AL < 26 group). Bimodal curves are shown with two peaks at spherical equivalent addition of 0.0 D and −3.0 D. Although a significant difference between two groups is observed at spherical equivalent addition of −5.0 D, no significant differences were found at the other values. (b) Eyes in AL ≥ 26 group were further divided into 26 ≤ AL < 28 group and AL ≥ 28 group. Bimodal curves are alsoobserved. Significant differences are detected at additional spherical equivalent of 0.0, −1.5, −2.0, −2.5, and −3.0 D. ∗Mann-Whitney U test.
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fig6: Defocus curves. (a) Eyes were divided into axial length of 26 mm or longer (AL ≥ 26 group) and less than 26 mm (AL < 26 group). Bimodal curves are shown with two peaks at spherical equivalent addition of 0.0 D and −3.0 D. Although a significant difference between two groups is observed at spherical equivalent addition of −5.0 D, no significant differences were found at the other values. (b) Eyes in AL ≥ 26 group were further divided into 26 ≤ AL < 28 group and AL ≥ 28 group. Bimodal curves are alsoobserved. Significant differences are detected at additional spherical equivalent of 0.0, −1.5, −2.0, −2.5, and −3.0 D. ∗Mann-Whitney U test.

Mentions: In the AL ≥ 26 and AL < 26 groups, the defocus curves showed a bimodal distribution with two peaks at additional spherical equivalent of 0.0 and −3.0 D (Figure 6(a)). A significant difference between two groups was observed at spherical equivalent addition of −5.0 D, while no significant differences were observed at the other values. At additional spherical equivalent from −1.0 to −2.0 D, which is related to intermediate visual acuity, the vision in this range is lower than the distance and near vision.


Usefulness of Implantation of Diffractive Multifocal Intraocular Lens in Eyes with Long Axial Lengths.

Ogawa T, Shiba T, Tsuneoka H - J Ophthalmol (2015)

Defocus curves. (a) Eyes were divided into axial length of 26 mm or longer (AL ≥ 26 group) and less than 26 mm (AL < 26 group). Bimodal curves are shown with two peaks at spherical equivalent addition of 0.0 D and −3.0 D. Although a significant difference between two groups is observed at spherical equivalent addition of −5.0 D, no significant differences were found at the other values. (b) Eyes in AL ≥ 26 group were further divided into 26 ≤ AL < 28 group and AL ≥ 28 group. Bimodal curves are alsoobserved. Significant differences are detected at additional spherical equivalent of 0.0, −1.5, −2.0, −2.5, and −3.0 D. ∗Mann-Whitney U test.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4644551&req=5

fig6: Defocus curves. (a) Eyes were divided into axial length of 26 mm or longer (AL ≥ 26 group) and less than 26 mm (AL < 26 group). Bimodal curves are shown with two peaks at spherical equivalent addition of 0.0 D and −3.0 D. Although a significant difference between two groups is observed at spherical equivalent addition of −5.0 D, no significant differences were found at the other values. (b) Eyes in AL ≥ 26 group were further divided into 26 ≤ AL < 28 group and AL ≥ 28 group. Bimodal curves are alsoobserved. Significant differences are detected at additional spherical equivalent of 0.0, −1.5, −2.0, −2.5, and −3.0 D. ∗Mann-Whitney U test.
Mentions: In the AL ≥ 26 and AL < 26 groups, the defocus curves showed a bimodal distribution with two peaks at additional spherical equivalent of 0.0 and −3.0 D (Figure 6(a)). A significant difference between two groups was observed at spherical equivalent addition of −5.0 D, while no significant differences were observed at the other values. At additional spherical equivalent from −1.0 to −2.0 D, which is related to intermediate visual acuity, the vision in this range is lower than the distance and near vision.

Bottom Line: Results.For near VA, the corresponding uncorrected VA was 0.06 ± 0.08 and 0.05 ± 0.09; and distance-corrected VA was 0.01 ± 0.06 and 0.01 ± 0.02, with no significant differences between two groups (p = 0.572, and 0.157; Mann-Whitney U test).Conclusion.

View Article: PubMed Central - PubMed

Affiliation: Department of Ophthalmology, The Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo 105-0003, Japan.

ABSTRACT
Purpose. This study retrospectively analyzed the postoperative visual functions of myopic eyes implanted with multifocal intraocular lens (IOL) to evaluate the efficacy of multifocal IOL in highly myopic eyes. Methods. We studied 61 patients (96 eyes) who were implanted with multifocal IOL ZMA00 or ZMB00 (Abbott Medical Optics). The patients were stratified into two groups by axial length: 26 mm or above (AL ≥ 26 group) and below 26 mm (AL < 26 group). Postoperative corrected and uncorrected distance (5 m) and near (30 cm) visual acuity (VA), contrast sensitivity, and depth of focus were compared between two groups. Results. In the AL ≥ 26 group and the AL < 26 group, the mean ± standard deviation uncorrected distance logMAR VA at 12-month postoperative follow-up was -0.04 ± 0.11 and -0.01 ± 0.14, respectively; and the corrected distance VA was -0.17 ± 0.08 and -0.14 ± 0.07, with no significant differences between two groups (p = 0.558 and 0.101; Mann-Whitney U test). For near VA, the corresponding uncorrected VA was 0.06 ± 0.08 and 0.05 ± 0.09; and distance-corrected VA was 0.01 ± 0.06 and 0.01 ± 0.02, with no significant differences between two groups (p = 0.572, and 0.157; Mann-Whitney U test). Conclusion. The present study demonstrates that it is possible to achieve good uncorrected near and distance VA following implantation of multifocal IOL in eyes with long axial lengths.

No MeSH data available.


Related in: MedlinePlus