Commentary: Assessment of a software-guided system to reduce pre-existing astigmatism in cataract surgery
| Autor: | Kumud D Jeswani, Bhargav R Raut, Rajeev M Raut, Madhuri R Raut |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
genetic structures medicine.medical_treatment sics Pilot Projects Cataract Extraction Astigmatism Cornea Software Lens Implantation Intraocular Ophthalmology medicine Humans Surgical Technique Phacoemulsification business.industry Corneal Topography Cataract surgery RE1-994 medicine.disease eye diseases Postoperative astigmatism Meridian (perimetry visual field) medicine.anatomical_structure astigmatism Small incision cataract Commentary k2k system business |
| Zdroj: | Indian Journal of Ophthalmology, Vol 69, Iss 5, Pp 1306-1309 (2021) Indian Journal of Ophthalmology |
| ISSN: | 1998-3689 0301-4738 |
| Popis: | The aim of this pilot study was to assess the astigmatism after small incision cataract surgery by use of a novel software guided surgical technique. The software system guides the surgeon toward a hypothetical shape of the cornea. When this shape is achieved, the vertical meridian is relaxed and the incision does not produce any astigmatism. How that hypothetical shape is to be achieved by the surgeon is described. If preoperative astigmatism exists, the hypothetical shape calculated by the system takes that into account. This enables the surgeon to reduce preexisting astigmatism, without having to change the site or size of the standard 6 mm 12 o clock incision of SICS. Results: Results indicated that preoperative astigmatism reduced in 11 out of 14 cases at the end of 8 weeks, remained unchanged in one, and increased by less than 0.5D in two cases. This proves the hypothesis that the vertical corneal meridian is under higher tension and relaxing it by flattening the perpendicular meridian has a reducing effect on postoperative astigmatism. |
| Databáze: | OpenAIRE |
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