High-sensitive indicator to the multiple determination of phenolics based on multi-walled as well as

Author : Skytte Dickens | Published On : 21 Mar 2025

12 ± 1.54 and 24.12 ± 1.54 mm, respectively (P = 0.97). The mean difference between the preoperative and postoperative ALs was 0.00 ± 0.03 mm on SS-OCT with SM; Bland-Altman analysis indicated good agreement between these values. CONCLUSIONS The difference between preoperative and postoperative ALs is less with SS-OCT with SM than with PCI or SS-OCT with CM. Assuming that AL is not altered by cataract surgery, AL measurement is more accurate by SS-OCT with SM than by PCI or SS-OCT with CM.A new technique for fixating the capsular bag in patients with ectopia lentis is presented. In this technique, the capsulorhexis is performed using a femtosecond laser, followed by the insertion of a standard capsular tension ring to redistribute capsular forces. The nucleus is hydroprolapsed into the anterior chamber and nuclear disassembly is performed above the iris plane to reduce zonular stress. Finally, a 5-0 polypropylene monofilament is used to fixate a capsular tension segment and subluxated capsular bag. This novel double-flanged method, achieved with cautery, does not require direct suturing of the monofilament on the sclera. This article describes the use of this new technique in 3 eyes, 2 in patients with Marfan syndrome and 1 in a patient with microspherophakia.Foldable acrylic posterior chamber intraocular lenses (PCIOL) can be removed via a variety of methods. In this technique, the PCIOL is freed from its position in the capsular bag or sulcus space and raised into the anterior chamber. The IOL is manipulated such that a haptic is externalized through a 2.2 mm corneal incision. A spatula is inserted through a paracentesis incision and placed above the PCIOL. A straight forceps is inserted through the main incision and the haptic/optic junction closest to the paracentesis is grasped with the hand completely supinated. The hand is then pronated while rolling the PCIOL around the forceps using the spatula to guide the PCIOL and guard the cornea. The forceps is then retracted through the main wound, enveloped by the PCIOL, thereby removing an acrylic PCIOL in its entirety using standard intraocular instruments through a 2.2 mm incision.PURPOSE To evaluate changes in angle kappa following the implantation of a trifocal intraocular lens (IOL), and to assess the postoperative outcomes of patients with different angle kappa values. SETTING IOA Madrid Innova Ocular, Madrid, Spain DESIGN Prospective trial METHODS Sixty-three patients due to have bilateral implantation of the diffractive trifocal IOL (POD F, PhysIOL, Belgium) were included. Pupil offset was used as the best estimate of angle kappa and was measured using Pentacam (Oculus, Wetzlar, Germany) preoperatively and at 3-months after surgery. Postoperative refractive outcomes (sphere, cylinder, and MRSE) and visual outcomes at far, intermediate and near distance were assessed and compared between eyes with small pupil offset and eyes with large pupil offset. Quality of vision was assessed using a subjective questionnaire. RESULTS There was significant decrease in pupil offset post-operatively (mean 0.197 ± 0.12 mm) compared to preoperatively (mean 0.239 ± 0.12 mm), with a mean decrease of -0.042 mm (P = 0.0002). The same significant decrease was found for both the right eyes and left eyes, when analysed separately. No statistically significant difference was found in any of the refractive and visual acuity outcomes between eyes with small pupil offset and eyes with large pupil offset. The majority of patients (14 out of 16) complaining of significant halos had eyes with small pupil offset. CONCLUSION Large pupil offset did not negatively affect visual and refractive outcomes. The tolerance to larger pupil offset might be due to the IOL optical design, with the first diffractive ring being larger than other commonly used multifocal IOLs. More studies comparing various diffractive IOL models will be useful to confirm such hypothesis.Retained lenticule fragments postoperatively is a unique complication following Small Incision Lenticule Extraction. Large or central remnants with pursuant complications including irregular astigmatism, induced corneal aberrations and reduction in visual acuity, warrant a surgical removal. Currently described modalities to delineate lenticule remnants include the use of an anterior segment optical coherence tomography or CIRCLE software. However, the incurred cost and restricted availability of the described techniques limit their widespread use. We demonstrate the intraoperative administration of diluted triamcinolone acetonide into the intrastromal pocket to delineate lenticule edges, aiding subsequent removal.Pre-Descemet's endothelial keratoplasty (PDEK) is an alternative technique to Descemet's membrane endothelial keratoplasty (DMEK). The preparation of PDEK tissue by pneumatic dissection is simple and reproducible. The PDEK clamp helps to consistently obtain a type-1 big bubble (BB). Ki16425 The mean size of type 1 BB is 7.255 ± 0.535 x 6.745 ± 0.668 mm. The volume of air required to obtain type 1 BB is 0.14ml to 0.37ml. Dissection of PDEK tissue can be achieved by trephination or manual excision. Insertion of tissue in to the recipient eye can be by injection or pulling. Unfolding techniques used for PDEK are similar to those used in DMEK. Unlike DMEK, PDEK tissue is easier to handle and unscroll, and allows use of younger donors. It should help surgeons converting to endothelial keratoplasty, with significant advantages in preparation, handling and unscrolling in the eye.Surgeries for pelvic organ prolapse (POP) are common, but standardization of surgical terms is needed to improve the quality of investigation and clinical care around these procedures. The American Urogynecologic Society and the International Urogynecologic Association convened a joint writing group consisting of 5 designees from each society to standardize terminology around common surgical terms in POP repair including the following sacrocolpopexy (including sacral colpoperineopexy), sacrocervicopexy, uterosacral ligament suspension, sacrospinous ligament fixation, iliococcygeus fixation, uterine preservation prolapse procedures or hysteropexy (including sacrohysteropexy, uterosacral hysteropexy, sacrospinous hysteropexy, anterior abdominal wall hysteropexy, Manchester procedure), anterior prolapse procedures (including anterior vaginal repair, anterior vaginal repair with graft, and paravaginal repair), posterior prolapse procedures (including posterior vaginal repair, posterior vaginal repair with graft, levator plication, and perineal repair), and obliterative prolapse repairs (including colpocleisis with hysterectomy, colpocleisis without hysterectomy, and colpocleisis of the vaginal vault).