Publications by authors named "P S Gartaganis"
We report an unusual, rare case of opacification of the hydrophilic acrylic intraocular lens (IOL) 23 years after the initial surgery with significant visual deterioration. Opacification of the hydrophilic acrylic IOL was primarily due to the formation of folds on the surface of the lens material, and less so due to calcium phosphate deposits. Calcification opacification can be attributed to recent events, as evidenced by deposits of dicalcium phosphate dihydrate (CaHPO2HO) and octacalcium phosphate (CaH(PO)5HO), both of which are transient calcium phosphate phases, converting hydrolytically to the thermodynamically most stable hydroxyapatite (Ca(PO)(OH)).
View Article and Find Full Text PDFImpact of flight and equivalent short-term high-altitude exposure on ocular structures and function.
Med Hypothesis Discov Innov Ophthalmol
December 2023
Background: Exposure to high-altitude conditions during flight or similar activities affects many aspects of visual function, which is critical not only for flight safety but for any altitude-related activity. We aimed to summarize the available literature pertaining to ocular changes during flight or equivalent short-term high-altitude exposure (e.g.
View Article and Find Full Text PDFBackground: Hydrophilic intraocular lens opacification is a rare complication due to calcification. With current new surgical techniques, including lamellar endothelial keratoplasty and vitrectomies, this irreversible complication is becoming more common. In this case study, we present clinical and laboratory features of a case of Carlevale hydrophilic acrylic IOL calcification.
View Article and Find Full Text PDFArticle Synopsis
- Dexamethasone intravitreal implant (Ozurdex) is effective in treating conditions like cystoid macular edema, but can rarely migrate to the anterior chamber, especially in eyes that have undergone vitrectomy.
- A case is reported where a 78-year-old woman experienced this migration after receiving the implant following cataract surgery and placement of a new scleral fixated lens (Carlevale IOL).
- The implant caused corneal edema, but removal of the implant led to improvement in her vision and stabilization of her condition one year later, indicating that complications can be resolved with prompt intervention.
Purpose: The purpose of the study is to evaluate the comparability of corneal power measurements, anterior chamber depth (ACD), and white-to-white (WTW) distance between a high-resolution Scheimpflug-based tomography (Pentacam HR; Oculus GmbH, Wetzlar, Germany) and a swept-source optical biometry, IOL Master 700; Carl Zeiss Meditec AG, Jena, Germany) in patients having undergone a myopic refractive surgery.
Methods: This prospective, interinstrument reliability analysis included 31 individuals with a previous myopic laser refractive correction. Standard keratometry and total keratometry (TK) of the flattest and steepest axis of the IOL Master 700 were compared with standard keratometry (simulated keratometry [SimK]), true net power (TNP), equivalent keratometer readings (EKR), and total corneal refractive power of the Pentacam.