Conductive keratoplasty for the treatment of presbyopia: comparative study between post- and non-LASIK eyes
Minoru Tomita* Miyuki Watabe* Mitsutoshi Ito Tadahiko TsuruShinagawa LASIK Center, Chiyoda-ku, Tokyo, Japan*Minoru Tomita and Miyuki Watabe contributed equally to this studyPurpose: To evaluate the efficacy and safety of conductive keratoplasty (CK) for the treatment of presbyopia and analyze the di...
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Dove Medical Press
2011
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oai:doaj.org-article:51e43e710a5a4df2975bcdd7fcce82ad2021-12-02T08:24:25ZConductive keratoplasty for the treatment of presbyopia: comparative study between post- and non-LASIK eyes1177-54671177-5483https://doaj.org/article/51e43e710a5a4df2975bcdd7fcce82ad2011-02-01T00:00:00Zhttp://www.dovepress.com/conductive-keratoplasty-for-the-treatment-of-presbyopia-comparative-st-a6375https://doaj.org/toc/1177-5467https://doaj.org/toc/1177-5483Minoru Tomita* Miyuki Watabe* Mitsutoshi Ito Tadahiko TsuruShinagawa LASIK Center, Chiyoda-ku, Tokyo, Japan*Minoru Tomita and Miyuki Watabe contributed equally to this studyPurpose: To evaluate the efficacy and safety of conductive keratoplasty (CK) for the treatment of presbyopia and analyze the differences in the effects between post- and non-laser in situ keratomileusis (LASIK) eyes. Clinical preoperative factors that could affect the predictability of CK were also analyzed.Methods: The visual and refractive outcomes of CK for the treatment of presbyopia in 14 eyes of 13 post-LASIK patients (post-LASIK group mean age 50.9 ± 3.4 years) and those of 25 eyes of 25 non-LASIK patients (non-LASIK group mean age 52.4 ± 4.0 years) were studied. The clinical efficacy, safety, stability, and predictability of CK were statistically evaluated.Results: The mean (logarithm of the minimum angle of resolution [logMAR] ± standard deviation [SD]) of preoperative uncorrected near visual acuity (UNVA) and manifest refraction spherical equivalent (MRSE) were 0.64 ± 0.25 diopter (D) and 0.35 ± 0.48 D, respectively, in the post-LASIK group, and 0.71 ± 0.20 D and 0.64 ± 0.61 D, respectively, in the non-LASIK group. At 6 months after CK, the mean UNVA and MRSE were 0.07 ± 0.13 D and -1.59 ± 0.86 D, respectively, in the post-LASIK group, and 0.07 ± 0.12 D and -1.06 ± 0.56 D, respectively, in the non-LASIK group. At 1 year after CK, the mean UNVA and MRSE were 0.30 ± 0.17 D and -0.58 ± 0.52 D, respectively, in the post-LASIK group, and 0.28 ± 0.34 D and -1.56 ± 0.62 D, respectively, in the non-LASIK group. There was no significant difference between the two groups in either factor at 6 months postoperative (Student’s t-test, P > 0.05). At 1 year after CK, all the treated eyes maintained corrected distance visual acuity better than -0.08 (logMAR). The mean cylindrical errors were within ±1.00 D in 100% of the post-LASIK and non-LASIK patients. As for the preoperative clinical factors evaluated for their potential relationship to the predictability of CK, none showed significant effect on the clinical outcomes.Conclusion: CK is demonstrated to be safe for the treatment of presbyopia in post-LASIK patients as well as in non-LASIK patients, though needed longer observation in terms of factors affecting predictability.Keywords: conductive keratoplasty, post-LASIK, presbyopia, CK Minoru TomitaMiyuki WatabeMitsutoshi Itoet alDove Medical PressarticleOphthalmologyRE1-994ENClinical Ophthalmology, Vol 2011, Iss default, Pp 231-237 (2011) |
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Ophthalmology RE1-994 |
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Ophthalmology RE1-994 Minoru Tomita Miyuki Watabe Mitsutoshi Ito et al Conductive keratoplasty for the treatment of presbyopia: comparative study between post- and non-LASIK eyes |
| description |
Minoru Tomita* Miyuki Watabe* Mitsutoshi Ito Tadahiko TsuruShinagawa LASIK Center, Chiyoda-ku, Tokyo, Japan*Minoru Tomita and Miyuki Watabe contributed equally to this studyPurpose: To evaluate the efficacy and safety of conductive keratoplasty (CK) for the treatment of presbyopia and analyze the differences in the effects between post- and non-laser in situ keratomileusis (LASIK) eyes. Clinical preoperative factors that could affect the predictability of CK were also analyzed.Methods: The visual and refractive outcomes of CK for the treatment of presbyopia in 14 eyes of 13 post-LASIK patients (post-LASIK group mean age 50.9 ± 3.4 years) and those of 25 eyes of 25 non-LASIK patients (non-LASIK group mean age 52.4 ± 4.0 years) were studied. The clinical efficacy, safety, stability, and predictability of CK were statistically evaluated.Results: The mean (logarithm of the minimum angle of resolution [logMAR] ± standard deviation [SD]) of preoperative uncorrected near visual acuity (UNVA) and manifest refraction spherical equivalent (MRSE) were 0.64 ± 0.25 diopter (D) and 0.35 ± 0.48 D, respectively, in the post-LASIK group, and 0.71 ± 0.20 D and 0.64 ± 0.61 D, respectively, in the non-LASIK group. At 6 months after CK, the mean UNVA and MRSE were 0.07 ± 0.13 D and -1.59 ± 0.86 D, respectively, in the post-LASIK group, and 0.07 ± 0.12 D and -1.06 ± 0.56 D, respectively, in the non-LASIK group. At 1 year after CK, the mean UNVA and MRSE were 0.30 ± 0.17 D and -0.58 ± 0.52 D, respectively, in the post-LASIK group, and 0.28 ± 0.34 D and -1.56 ± 0.62 D, respectively, in the non-LASIK group. There was no significant difference between the two groups in either factor at 6 months postoperative (Student’s t-test, P > 0.05). At 1 year after CK, all the treated eyes maintained corrected distance visual acuity better than -0.08 (logMAR). The mean cylindrical errors were within ±1.00 D in 100% of the post-LASIK and non-LASIK patients. As for the preoperative clinical factors evaluated for their potential relationship to the predictability of CK, none showed significant effect on the clinical outcomes.Conclusion: CK is demonstrated to be safe for the treatment of presbyopia in post-LASIK patients as well as in non-LASIK patients, though needed longer observation in terms of factors affecting predictability.Keywords: conductive keratoplasty, post-LASIK, presbyopia, CK |
| format |
article |
| author |
Minoru Tomita Miyuki Watabe Mitsutoshi Ito et al |
| author_facet |
Minoru Tomita Miyuki Watabe Mitsutoshi Ito et al |
| author_sort |
Minoru Tomita |
| title |
Conductive keratoplasty for the treatment of presbyopia: comparative study between post- and non-LASIK eyes |
| title_short |
Conductive keratoplasty for the treatment of presbyopia: comparative study between post- and non-LASIK eyes |
| title_full |
Conductive keratoplasty for the treatment of presbyopia: comparative study between post- and non-LASIK eyes |
| title_fullStr |
Conductive keratoplasty for the treatment of presbyopia: comparative study between post- and non-LASIK eyes |
| title_full_unstemmed |
Conductive keratoplasty for the treatment of presbyopia: comparative study between post- and non-LASIK eyes |
| title_sort |
conductive keratoplasty for the treatment of presbyopia: comparative study between post- and non-lasik eyes |
| publisher |
Dove Medical Press |
| publishDate |
2011 |
| url |
https://doaj.org/article/51e43e710a5a4df2975bcdd7fcce82ad |
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