Cases reported "Astigmatism"

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1/2. Implantation of a toric poly(methyl methacrylate) intraocular lens to correct high astigmatism.

    A 57-year-old man experienced a decrease in visual function because of cataract formation. Corneal astigmatism was 13.4 diopters (D) because he had had a penetrating keratoplasty 27 years before. cataract surgery was planned, and biometric data for toric intraocular lens (IOL) implantation were collected for the manufacture of a custom IOL. After phacoemulsification, a toric poly(methyl methacrylate) (PMMA) IOL of 19.0 D spherical and 12.0 D cylindrical power was implanted via a sclerocorneal tunnel incision. Three months postoperatively, corneal astigmatism was 14.3 D and best corrected visual acuity (BCVA), 20/25. Postoperative refraction ( 1.5 -3.0 x 90) and BCVA remained stable for 7 months. No significant IOL rotation was observed. Implantation of a toric PMMA IOL corrected high corneal astigmatism. Toric IOL technology with high cylindrical power allows enhancement of IOL surgery.
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keywords = phacoemulsification
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2/2. Scheimpflug imaging of bilateral foldable in-the-bag intraocular lens implantation assisted by a scleral-sutured capsular tension ring in Marfan's syndrome.

    A 35-year-old white man with bilateral high myopia, astigmatism, subluxated crystalline lenses, and incipient cataract had phacoemulsification and implantation of a hydrophobic acrylic intraocular lens (IOL) (Alcon MA60BM) in both eyes. The subluxated capsular bag was stabilized and recentered using a scleral-fixated capsular tension ring (CTR) (type 1L, Morcher). Measured with Scheimpflug photography, the capsular bag and IOL were in a stable intraocular position during the 18-month follow-up. There were no major changes in refraction. Despite the sharp-edged IOL design, both eyes had posterior capsule opacification (PCO) 18 months after surgery that in 1 eye caused a decrease in visual acuity of more than 2 lines. High myopia and subluxated lenses may be treatable long-term with a scleral-fixated CTR and foldable IOL implantation; further evaluation of PCO is necessary.
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ranking = 1
keywords = phacoemulsification
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