Toric Intraocular Lens Results Considering Posterior Corneal Astigmatism with Online Calculators: Phacoemulsification vs. Femtosecond
To evaluate the prediction error (PE) obtained in Phacoemulsification (Phaco) or Femtosecond (Femto) surgeries without considering posterior corneal astigmatism correction (non-PCA) versus the correction based on Abulafia-Koch + Medicontur (AK) and Barrett calculators in toric intraocular lens (IOL)...
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| Format: | Article |
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MDPI AG
2021-09-01
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| Series: | Optics |
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| Online Access: | https://www.mdpi.com/2673-3269/2/3/17 |
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| author | Joaquín Fernández Manuel Rodríguez-Vallejo Noemí Burguera Patrizia Salvestrini Nuria Garzón |
| author_facet | Joaquín Fernández Manuel Rodríguez-Vallejo Noemí Burguera Patrizia Salvestrini Nuria Garzón |
| author_sort | Joaquín Fernández |
| collection | DOAJ |
| description | To evaluate the prediction error (PE) obtained in Phacoemulsification (Phaco) or Femtosecond (Femto) surgeries without considering posterior corneal astigmatism correction (non-PCA) versus the correction based on Abulafia-Koch + Medicontur (AK) and Barrett calculators in toric intraocular lens (IOL) power calculation. 58 right eyes were retrospectively retrieved from our database. Two groups formed by 28 and 30 eyes depending on the surgery type, Phaco or Femto respectively, were defined. Astigmatism PE were evaluated considering the approach used for calculation of the implanted IOL power (AK) versus the estimation of PEs in non-PCA and Barrett formula. A doubly-multivariate analysis was conducted to assess the differences between-surgery types, within-methods of calculation, and interaction. Mean centroid PE was significantly different between non-PCA, AK and Barrett approaches (<i>p</i> < 0.0005), and neither differences (<i>p</i> < 0.239) nor interaction (<i>p</i> = 0.672) between Phaco or Femto were found. Post-hoc univariate analysis showed a higher PE for the x-component of the non-PCA method versus AK (0.15 D, <i>p</i> < 0.0005) and non-PCA versus Barrett (0.18 D, <i>p</i> < 0.0005), though no differences were found between AK and Barrett (0.03 D, <i>p</i> = 0.93). Against-the-rule under-correction and with-the-rule overcorrection were found in both arms when PCA was not considered. Both calculators provide comparable clinical results. |
| first_indexed | 2024-03-10T07:20:31Z |
| format | Article |
| id | doaj.art-afba7b15afc34d91a3f759a812244472 |
| institution | Directory Open Access Journal |
| issn | 2673-3269 |
| language | English |
| last_indexed | 2024-03-10T07:20:31Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Optics |
| spelling | doaj.art-afba7b15afc34d91a3f759a8122444722023-11-22T14:40:50ZengMDPI AGOptics2673-32692021-09-012318419210.3390/opt2030017Toric Intraocular Lens Results Considering Posterior Corneal Astigmatism with Online Calculators: Phacoemulsification vs. FemtosecondJoaquín Fernández0Manuel Rodríguez-Vallejo1Noemí Burguera2Patrizia Salvestrini3Nuria Garzón4Department of Ophthalmology (Qvision), VITHAS Hospital, 04120 Almería, SpainDepartment of Ophthalmology (Qvision), VITHAS Hospital, 04120 Almería, SpainDepartment of Ophthalmology (Qvision), VITHAS Hospital, 04120 Almería, SpainDepartment of Ophthalmology (Qvision), VITHAS Hospital, 04120 Almería, SpainOptometry and Vision Department, Faculty of Optics and Optometry, Complutense University of Madrid (Garzón), 28037 Madrid, SpainTo evaluate the prediction error (PE) obtained in Phacoemulsification (Phaco) or Femtosecond (Femto) surgeries without considering posterior corneal astigmatism correction (non-PCA) versus the correction based on Abulafia-Koch + Medicontur (AK) and Barrett calculators in toric intraocular lens (IOL) power calculation. 58 right eyes were retrospectively retrieved from our database. Two groups formed by 28 and 30 eyes depending on the surgery type, Phaco or Femto respectively, were defined. Astigmatism PE were evaluated considering the approach used for calculation of the implanted IOL power (AK) versus the estimation of PEs in non-PCA and Barrett formula. A doubly-multivariate analysis was conducted to assess the differences between-surgery types, within-methods of calculation, and interaction. Mean centroid PE was significantly different between non-PCA, AK and Barrett approaches (<i>p</i> < 0.0005), and neither differences (<i>p</i> < 0.239) nor interaction (<i>p</i> = 0.672) between Phaco or Femto were found. Post-hoc univariate analysis showed a higher PE for the x-component of the non-PCA method versus AK (0.15 D, <i>p</i> < 0.0005) and non-PCA versus Barrett (0.18 D, <i>p</i> < 0.0005), though no differences were found between AK and Barrett (0.03 D, <i>p</i> = 0.93). Against-the-rule under-correction and with-the-rule overcorrection were found in both arms when PCA was not considered. Both calculators provide comparable clinical results.https://www.mdpi.com/2673-3269/2/3/17toric intraocular lensprediction errorposterior corneal astigmatismfemtosecondphacoemulsification |
| spellingShingle | Joaquín Fernández Manuel Rodríguez-Vallejo Noemí Burguera Patrizia Salvestrini Nuria Garzón Toric Intraocular Lens Results Considering Posterior Corneal Astigmatism with Online Calculators: Phacoemulsification vs. Femtosecond Optics toric intraocular lens prediction error posterior corneal astigmatism femtosecond phacoemulsification |
| title | Toric Intraocular Lens Results Considering Posterior Corneal Astigmatism with Online Calculators: Phacoemulsification vs. Femtosecond |
| title_full | Toric Intraocular Lens Results Considering Posterior Corneal Astigmatism with Online Calculators: Phacoemulsification vs. Femtosecond |
| title_fullStr | Toric Intraocular Lens Results Considering Posterior Corneal Astigmatism with Online Calculators: Phacoemulsification vs. Femtosecond |
| title_full_unstemmed | Toric Intraocular Lens Results Considering Posterior Corneal Astigmatism with Online Calculators: Phacoemulsification vs. Femtosecond |
| title_short | Toric Intraocular Lens Results Considering Posterior Corneal Astigmatism with Online Calculators: Phacoemulsification vs. Femtosecond |
| title_sort | toric intraocular lens results considering posterior corneal astigmatism with online calculators phacoemulsification vs femtosecond |
| topic | toric intraocular lens prediction error posterior corneal astigmatism femtosecond phacoemulsification |
| url | https://www.mdpi.com/2673-3269/2/3/17 |
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