Combined Cataract and Glaucoma Surgery
Neil T. Choplin, Carlo E. Traverso in Atlas of Glaucoma, 2014
Glaucoma patients, especially those with pseudoexfoliation syndrome, are often at risk of weak zonules, and extra care must thus be taken to avoid complications, such as vitreous loss or loss of lens material posteriorly into the vitreous cavity. To avoid zonular stress, careful and thorough hydrodis-section and hydrodelineation must be performed to free the nucleus from all its cortical attachments, allowing free rotation within the bag. The surgeon should avoid undue pushing of the nucleus with the tip of the phacoemulsification hand piece during sculpting, which could cause zonular disruption. A chopping or supra-capsular technique as opposed to a traditional divide and conquer technique might reduce intraoperative zonular stress. Figures 19.8 through 19.11 illustrate some of these points.
Correlation of the intronic LOXL1 polymorphism rs11638944 with pseudoexfoliation syndrome and glaucoma in a Greek population
Published in Ophthalmic Genetics, 2021
Maria-Kyriaki Papadopoulou, Irini Chatziralli, Konstantina Tzika, Dimitrios Chiras, George Kitsos, Christos Kroupis
Pseudoexfoliation syndrome was defined by the presence of typical exfoliation material on the anterior lens capsule and/or at the pupillary margin in one or both eyes with a normal optic disc and visual field and IOP≤21 mm Hg in both eyes. Inclusion criteria for POAG patients were untreated IOP≥22 mm Hg on at least two diurnal curves, open-normal angle, glaucomatous optic disc and at least three Humphrey visual field tests with glaucomatous defects. Patients with secondary or closed-angle glaucoma were excluded. The criteria for the diagnosis of POAG were according to the guidelines of the European Glaucoma Society (28). Besides the signs of OAG, PXG was defined by the presence of characteristic slit-lamp findings, including exfoliation deposits on the anterior lens capsule and/or at the pupillary margin in one or both eyes.
Static and dynamic pupil characteristics in pseudoexfoliation syndrome and glaucoma
Published in Clinical and Experimental Optometry, 2020
Kemal Tekin, Hasan Kiziltoprak, Mehmet Ali Sekeroglu, Esat Yetkin, Serdar Bayraktar, Pelin Yilmazbas
Pseudoexfoliation syndrome (PES) is a complex and age‐related systemic disorder characterised by the progressive accumulation of abnormal extracellular pseudoexfoliative material in ocular tissues.2015 This accumulation could be detected in almost all the structures of the anterior ocular segment including ciliary body, iris, iridocorneal angle, lens capsule, zonules and cornea.2015 Detecting PES is important since it might be associated with a broad spectrum of ocular manifestations including increased intraocular pressure, cataract formation, zonular instability and phacodonesis, blood‐aqueous barrier dysfunction and inflammation, keratopathy and also markedly increased intra‐operative and post‐operative complications such as insufficient mydriasis, posterior capsule rupture, intraocular lens subluxation, and posterior synechiae.2015 Furthermore, PES is considered to be the most common identifiable reason of open‐angle glaucoma.1994 Pseudoexfoliation glaucoma (PEG) is a common cause of blindness worldwide and tends to be more progressive and serious compared to primary open‐angle glaucoma.1994
Prediction Error of Intraocular Lens Power Calculation in Very Elderly Patients over 90 Years Old
Published in Current Eye Research, 2021
Yusuke Koga, Kentaro Kojima, Kengo Yoshii, Natsuki Kusada, Yu Kagitani, Takanori Aoki, Noriko Horiuchi, Koji Kitazawa, Chie Sotozono
Fisher’s exact test was used to compare the gender ratio and prevalence of pseudoexfoliation syndrome. For comparison of age, preoperative BCVA, AL, average corneal power, target diopter, and arithmetic and absolute PE values, we conducted the Mann–Whitney U-tests. The correlation among age, AL, and absolute PE was determined by performing Spearman’s correlation analysis. Fisher’s exact test, the Mann–Whitney U-test, and Spearman’s correlation analysis were performed using Easy R (Saitama Medical Center, Jichi Medical University, Saitama, Japan), which is a graphical user interface for R (The R Foundation for Statistical Computing, Vienna, Austria). More precisely, it is a modified version of R commander with added statistical functions that are frequently used in biostatistics.16
Related Knowledge Centers
- Cataract
- Dandruff
- Glaucoma
- Systemic Disease
- Genetics
- Aqueous Humour
- Amyloid
- Ophthalmology
- Optometry
- Iris