Analysis of photoastigmatic keratectomy with the cross-cylinder ablation
Aim: The aim was to evaluate the safety and efficacy of the "cross-cylinder" technique in the correction of astigmatism. Setting and Design: A prospective interventional study from a university eye department was conducted. Material and Methods: The photoastigmatic refractive keratectomy (...
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2012-01-01
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| Series: | Indian Journal of Ophthalmology |
| Subjects: | |
| Online Access: | http://www.ijo.in/article.asp?issn=0301-4738;year=2012;volume=60;issue=4;spage=283;epage=287;aulast=Rosa |
| _version_ | 1818951129371770880 |
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| author | Nicola Rosa Maddalena De Bernardo Mario R Romano Gianluca Scarfato Francesco Verdoliva Rodolfo Mastropasqua Michele Lanza |
| author_facet | Nicola Rosa Maddalena De Bernardo Mario R Romano Gianluca Scarfato Francesco Verdoliva Rodolfo Mastropasqua Michele Lanza |
| author_sort | Nicola Rosa |
| collection | DOAJ |
| description | Aim: The aim was to evaluate the safety and efficacy of the "cross-cylinder" technique in the correction of astigmatism. Setting and Design: A prospective interventional study from a university eye department was conducted. Material and Methods: The photoastigmatic refractive keratectomy (PARK) using the "cross-cylinder" technique was performed in 102 eyes of 84 patients with at least 0.75 D of astigmatism. The study population was divided into two groups: in the first group the preoperative astigmatic power ranged from −0.75 D to −3.00 D (group 1), in the second group it ranged from −3.25 D to −6.00 D (group 2). Group 1 included 82 eyes of 67 patients (29 males and 38 females) with a mean cylinder power of −1.90 ± 0.63 D, group 2 included 20 eyes of 17 patients (13 males and 4 females) with a mean cylinder power of -4.28 ± 0.76 D. All eyes were targeted for emmetropia. The results were evaluated using Calossi′s vector analysis method. Six-month postoperative outcomes are presented. Results: Six months after PARK the mean sphere for the entire cohort was +0.28 ± 0.75 D (range +2.5 to −2 D), the mean cylindrical power was +0.33 ± 0.51 D (range +2.5 to −1.25 D) and the mean spherical equivalent refraction was +0.73 ± 0.81 D (range +1.75 to −2 D). Conclusions: The cross-cylinder technique may be safely used with predictable results for the correction of astigmatism. |
| first_indexed | 2024-12-20T09:29:34Z |
| format | Article |
| id | doaj.art-3ff4da05425e41e1b660ed524a77009e |
| institution | Directory Open Access Journal |
| issn | 0301-4738 1998-3689 |
| language | English |
| last_indexed | 2024-12-20T09:29:34Z |
| publishDate | 2012-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Indian Journal of Ophthalmology |
| spelling | doaj.art-3ff4da05425e41e1b660ed524a77009e2022-12-21T19:45:07ZengWolters Kluwer Medknow PublicationsIndian Journal of Ophthalmology0301-47381998-36892012-01-0160428328710.4103/0301-4738.98707Analysis of photoastigmatic keratectomy with the cross-cylinder ablationNicola RosaMaddalena De BernardoMario R RomanoGianluca ScarfatoFrancesco VerdolivaRodolfo MastropasquaMichele LanzaAim: The aim was to evaluate the safety and efficacy of the "cross-cylinder" technique in the correction of astigmatism. Setting and Design: A prospective interventional study from a university eye department was conducted. Material and Methods: The photoastigmatic refractive keratectomy (PARK) using the "cross-cylinder" technique was performed in 102 eyes of 84 patients with at least 0.75 D of astigmatism. The study population was divided into two groups: in the first group the preoperative astigmatic power ranged from −0.75 D to −3.00 D (group 1), in the second group it ranged from −3.25 D to −6.00 D (group 2). Group 1 included 82 eyes of 67 patients (29 males and 38 females) with a mean cylinder power of −1.90 ± 0.63 D, group 2 included 20 eyes of 17 patients (13 males and 4 females) with a mean cylinder power of -4.28 ± 0.76 D. All eyes were targeted for emmetropia. The results were evaluated using Calossi′s vector analysis method. Six-month postoperative outcomes are presented. Results: Six months after PARK the mean sphere for the entire cohort was +0.28 ± 0.75 D (range +2.5 to −2 D), the mean cylindrical power was +0.33 ± 0.51 D (range +2.5 to −1.25 D) and the mean spherical equivalent refraction was +0.73 ± 0.81 D (range +1.75 to −2 D). Conclusions: The cross-cylinder technique may be safely used with predictable results for the correction of astigmatism.http://www.ijo.in/article.asp?issn=0301-4738;year=2012;volume=60;issue=4;spage=283;epage=287;aulast=RosaApoptosisglaucomaintraocular pressureretinal ganglion cellsretinal ischemiatumor necrosis factor-alphaBranch retinal vein occlusionlaserLucentismacular edemaMicrobial etiologymucopurulent keratitissuppurative keratitisIntraoperative application of mitomycin Cmitomycin Cpostoperative complicationspreoperative subconjunctival injectionrecurrence raterecurrent pterygiumCataractinflammationmydriasisprevention and controlsurgeryCross-cylinder techniquephotoastigmatic refractive keratectomyrefractive surgery |
| spellingShingle | Nicola Rosa Maddalena De Bernardo Mario R Romano Gianluca Scarfato Francesco Verdoliva Rodolfo Mastropasqua Michele Lanza Analysis of photoastigmatic keratectomy with the cross-cylinder ablation Indian Journal of Ophthalmology Apoptosis glaucoma intraocular pressure retinal ganglion cells retinal ischemia tumor necrosis factor-alpha Branch retinal vein occlusion laser Lucentis macular edema Microbial etiology mucopurulent keratitis suppurative keratitis Intraoperative application of mitomycin C mitomycin C postoperative complications preoperative subconjunctival injection recurrence rate recurrent pterygium Cataract inflammation mydriasis prevention and control surgery Cross-cylinder technique photoastigmatic refractive keratectomy refractive surgery |
| title | Analysis of photoastigmatic keratectomy with the cross-cylinder ablation |
| title_full | Analysis of photoastigmatic keratectomy with the cross-cylinder ablation |
| title_fullStr | Analysis of photoastigmatic keratectomy with the cross-cylinder ablation |
| title_full_unstemmed | Analysis of photoastigmatic keratectomy with the cross-cylinder ablation |
| title_short | Analysis of photoastigmatic keratectomy with the cross-cylinder ablation |
| title_sort | analysis of photoastigmatic keratectomy with the cross cylinder ablation |
| topic | Apoptosis glaucoma intraocular pressure retinal ganglion cells retinal ischemia tumor necrosis factor-alpha Branch retinal vein occlusion laser Lucentis macular edema Microbial etiology mucopurulent keratitis suppurative keratitis Intraoperative application of mitomycin C mitomycin C postoperative complications preoperative subconjunctival injection recurrence rate recurrent pterygium Cataract inflammation mydriasis prevention and control surgery Cross-cylinder technique photoastigmatic refractive keratectomy refractive surgery |
| url | http://www.ijo.in/article.asp?issn=0301-4738;year=2012;volume=60;issue=4;spage=283;epage=287;aulast=Rosa |
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