View clinical trials related to Pseudophakia.
Filter by:Medicontur hydrophilic posterior chamber monofocal intraocular lens (IOLs) are indicated to improve vision at far distance in adults with cataract and/or ametropia (hyperopia, myopia), secondarily to removal of the crystalline lens. The intraocular lens is intended to be surgically implanted into the eye with the purpose of restoring optical function in the aphakic eye to provide an optical system with high predictability of the precalculated dioptric power. The study will be performed partially as a retrospective study with patients enrolled who had been implanted with 690AD or 690ADY IOLs mono- or binocularly between September 2021 - March 2022. Data from five visits will be collected: - Baseline preoperative (maximum 90 days prior to surgery)- retrospective - IOL implantation Day 0 - retrospective - Postoperative visit at Day 1 (+/- 0 days) - retrospective - Postoperative visit at 1 month (+/- 2 weeks) - retrospective - Postoperative visit at 12 months (+/- 3 months) - consent and prospective visit
In this before-after interventional study on patients with presbyopia after cataract surgery, uncorrected distance vision and corrected distance visual acuity are measured and recorded by Snellen chart. Corrected near visual acuity from a distance of 40 cm is measured by the standard near vision chart (Rosenbaum near vision card). Twenty minutes after the administration of pilocarpine 1%, the corrected near and far visual acuity is measured again. Also, the relationship between the difference in average near visual acuity after the administration of 1% pilocarpine in pseudophakic people is measured with iris color and pupil size.
The residual hypermetropic refraction on pseudophakic(Trifocal IOL) patients is difficult to treat surgically. In addition, there are not many suitable options to offer such patients presenting with this condition. Two current common surgeries to treat residual hyperopic refraction are refractive lens exchange (RLE) and excimer laser ablation (LASIK or PRK). Laser procedures: Photorefractive keratectomy (PRK); Laser assisted in situ keratomileusis (LASIK); Risks of LASIK include abnormalities of the corneal flap, epithelial ingrowth, corneal ectasia, refractive surprises, irregular astigmatism, decentration, visual aberrations, a loss of BCVA, infectious keratitis, symptoms, and diffuse lamellar keratitis. Refractive lens exchange (RLE); The risks of RLE are similar to those of cataract surgery and include endophthalmitis, a loss of accommodation, vitreous loss with posterior capsular rupture, and retinal detachment. The method used at the EYE Hospital Pristina using fresh lenticule implantation by ReLex-SMILE is safe and effective method, since there is no flap this prevents invasive damage to the anterior surface of the cornea contrary to the LASIK where flap is present posing risk for epithelial ingrowth. Before SMILE,YAG-laser capsulotomy should be performed on all patients, regardless of posterior capsule ossification, in pseudophakic patients with residual refraction. When the YAG-laser is applied after the SMILE,there will be a diopter change.