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Ten commandments for biometry in tricky situations.
Indian J Ophthalmol
September 2022
CHL Hospital, Indore, Madhya Pradesh, India.
Background: Recently, the number of litigations on cataract surgeons has increased. Because of the increasing ambitions of surgeons and demands for a spectacle-free life, the incidence of unhappy patients is at an all-time high. To an ophthalmologist, the fruits of a good surgery are dependent largely on their skills.
View Article and Find Full Text PDFBiometry and Intraocular Lens Power Calculation in Eyes with Prior Laser Vision Correction (LVC) - A Review.
Klin Monbl Augenheilkd
August 2022
Klinik für Augenheilkunde, Goethe-Universität, Frankfurt, Germany.
Background: An intraocular lens (IOL) calculation in eyes that have undergone laser vision correction (LVC) poses a significant clinical issue in regards to both patient expectation and accuracy. This review aims to describe the pitfalls of IOL power calculation after LVC and give an overview of the current methods of IOL power calculation after LVC.
Review: Problems after LVC derive from the measurement of anterior corneal radii, central corneal thickness, asphericity, and the predicted effective lens position.
Purpose: To assess the impact of the use of artificial tears during the preoperative work-up performed before age-related cataract surgery, when a toric intraocular lens (IOL) was indicated.
Methods: This was a monocentric prospective study assessing 73 eyes of 51 patients, included consecutively after a preoperative work-up performed without artificial tears (no artificial tears group), when a toric IOL was indicated. Each included patient underwent a second series of examinations: biometry using the IOLMaster 700 (Carl Zeiss Meditec AG) and topography using the OPD-Scan II (Nidek), 1 minute after artificial tears instillation (artificial tears group; hyaluronate de sodium 0.
[Cataract surgery and the small eye: relative anterior microphthalmos, high hyperopia and nanophthalmos].
Ophthalmologe
January 2022
Augenklinik der Universität Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Deutschland.
Relative anterior microphthalmos, nanophthalmos and high-grade hyperopia are small eyes with different characteristic morphological relationships between the anterior segment and axis length. This article discusses the intraoperative challenges and surgical approaches to solutions for cataract operations in patients with one of the three named morphological alterations. Additionally, the article addresses possible comorbidities including glaucoma and preoperative planning.
View Article and Find Full Text PDFImprovement of Multiple Generations of Intraocular Lens Calculation Formulae with a Novel Approach Using Artificial Intelligence.
Transl Vis Sci Technol
March 2021
Wilmer Eye Institute, Baltimore, MD, USA.
Purpose: Cataract surgery is the most common eye surgery. Appropriate optimization of intraocular lens (IOL) calculation formulae can result in improved patient outcomes. The purpose of this article is to describe a methodology of optimizing existing IOL formulae and develop hybrid formulae based on artificial intelligence (AI).
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