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Astigmatic Outcomes of Temporal versus Nasal Clear Corneal Phacoemulsification

PURPOSE: To compare the astigmatic outcomes of phacoemulsification cataract surgery using temporal versus nasal clear corneal incisions. METHODS: In a clinical trial, consecutive patients with senile cataracts underwent phacoemulsification and implantation of a hydrophobic acrylic foldable intraocul...

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Autores principales: Pakravan, Mohammad, Nikkhah, Homayoun, Yazdani, Shahin, Shahabi, Camelia, Sedigh-Rahimabadi, Massih
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Ophthalmic Research Center 2009
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3498553/
https://www.ncbi.nlm.nih.gov/pubmed/23198052
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author Pakravan, Mohammad
Nikkhah, Homayoun
Yazdani, Shahin
Shahabi, Camelia
Sedigh-Rahimabadi, Massih
author_facet Pakravan, Mohammad
Nikkhah, Homayoun
Yazdani, Shahin
Shahabi, Camelia
Sedigh-Rahimabadi, Massih
author_sort Pakravan, Mohammad
collection PubMed
description PURPOSE: To compare the astigmatic outcomes of phacoemulsification cataract surgery using temporal versus nasal clear corneal incisions. METHODS: In a clinical trial, consecutive patients with senile cataracts underwent phacoemulsification and implantation of a hydrophobic acrylic foldable intraocular lens through a horizontal clear corneal incision (temporal in right and nasal in left eyes). Outcome measures included keratometric astigmatism and surgically induced astigmatism (SIA) calculated by the vector analysis method using the Holladay-Cravy- Koch formula. RESULTS: The nasal and temporal groups consisted of 20 eyes each. Mean preoperative keratometric astigmatism was 0.63±0.48 D and 0.38±0.39 D in the temporal and nasal incision groups respectively (P=0.09). Data on 10 eyes in each study group was available for the six-month analysis. Mean keratometric astigmatism was as follows in the temporal and nasal groups respectively: 0.85±0.47 D versus 1.95±0.45 D at 1 week (P<0.001), 0.73±0.46 D versus 1.79±0.55 D at 4 weeks (P<0.001), and 0.63±0.30 D versus 1.05±0.56 D at 6 months (P=0.053) after surgery. SIA at the same follow-up intervals was 0.71±0.20 D versus 1.80±0.22 D (P<0.001), 0.63±0.20 D versus 1.65±0.31 D (P<0.001) and 0.26±0.46 D versus 0.92±0.36 D (P=0.002) in the temporal versus nasal incision groups respectively. CONCLUSION: Temporal clear corneal phacoemulsification induces significantly less astigmatism as compared to similar surgery using the nasal approach.
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spelling pubmed-34985532012-11-29 Astigmatic Outcomes of Temporal versus Nasal Clear Corneal Phacoemulsification Pakravan, Mohammad Nikkhah, Homayoun Yazdani, Shahin Shahabi, Camelia Sedigh-Rahimabadi, Massih J Ophthalmic Vis Res Original Article PURPOSE: To compare the astigmatic outcomes of phacoemulsification cataract surgery using temporal versus nasal clear corneal incisions. METHODS: In a clinical trial, consecutive patients with senile cataracts underwent phacoemulsification and implantation of a hydrophobic acrylic foldable intraocular lens through a horizontal clear corneal incision (temporal in right and nasal in left eyes). Outcome measures included keratometric astigmatism and surgically induced astigmatism (SIA) calculated by the vector analysis method using the Holladay-Cravy- Koch formula. RESULTS: The nasal and temporal groups consisted of 20 eyes each. Mean preoperative keratometric astigmatism was 0.63±0.48 D and 0.38±0.39 D in the temporal and nasal incision groups respectively (P=0.09). Data on 10 eyes in each study group was available for the six-month analysis. Mean keratometric astigmatism was as follows in the temporal and nasal groups respectively: 0.85±0.47 D versus 1.95±0.45 D at 1 week (P<0.001), 0.73±0.46 D versus 1.79±0.55 D at 4 weeks (P<0.001), and 0.63±0.30 D versus 1.05±0.56 D at 6 months (P=0.053) after surgery. SIA at the same follow-up intervals was 0.71±0.20 D versus 1.80±0.22 D (P<0.001), 0.63±0.20 D versus 1.65±0.31 D (P<0.001) and 0.26±0.46 D versus 0.92±0.36 D (P=0.002) in the temporal versus nasal incision groups respectively. CONCLUSION: Temporal clear corneal phacoemulsification induces significantly less astigmatism as compared to similar surgery using the nasal approach. Ophthalmic Research Center 2009-04 /pmc/articles/PMC3498553/ /pubmed/23198052 Text en
spellingShingle Original Article
Pakravan, Mohammad
Nikkhah, Homayoun
Yazdani, Shahin
Shahabi, Camelia
Sedigh-Rahimabadi, Massih
Astigmatic Outcomes of Temporal versus Nasal Clear Corneal Phacoemulsification
title Astigmatic Outcomes of Temporal versus Nasal Clear Corneal Phacoemulsification
title_full Astigmatic Outcomes of Temporal versus Nasal Clear Corneal Phacoemulsification
title_fullStr Astigmatic Outcomes of Temporal versus Nasal Clear Corneal Phacoemulsification
title_full_unstemmed Astigmatic Outcomes of Temporal versus Nasal Clear Corneal Phacoemulsification
title_short Astigmatic Outcomes of Temporal versus Nasal Clear Corneal Phacoemulsification
title_sort astigmatic outcomes of temporal versus nasal clear corneal phacoemulsification
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3498553/
https://www.ncbi.nlm.nih.gov/pubmed/23198052
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