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Cataract Intraocular - Europe PMC

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Last Updated: 16 November 2022

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Comparative study to assess the effect of ropivacaine and a mixture of lidocaine and bupivacaine on intraocular pressure after peribulbar anesthesia for cataract surgery.

In terms of post-block intraocular pressure, we compare the gyne and bupivacaine in peribulbar anesthesia for cataract surgery. Methods A one-year comparative study was conducted to compare two anesthetic techniques for cataract surgery from January 2020 to December 2020 at a tertiary health care hospital. The ropivacaine group's IOP values were substantially lower than the equivalent figures for the lidocaine-bupivacaine group and baseline ropivacaine measurements, according to the 5- and 15-min post-block mean IOP values were significantly lower than the corresponding values in the lidocaine-bupivacaine group and baseline ropivacaine values. Conclusions The results of this review show that ropivacaine as a local anesthetic block for small-incision cataract surgery may be a viable alternative to the lidocaine-bupivacaine combination. Patients with a larger sample size are encouraged to investigate ropivacaine as a safe alternative to the lidocaine-bupivacaine mixture, as shown by studies.

Source link: https://europepmc.org/article/MED/36308109


Temporal Change in Anterior Chamber Depth after Combined Vitrectomy and Cataract Surgery Using Different Sizes of Intraocular Lens.

This research was conducted to explore temporal shifts in the anterior chamber depth and refractive prediction error of 6 and 7 mm diameter intraocular lenses after cataract surgery or phacovitrectomy with or without sulfur hexafluoride gas. We reviewed 120 patients and divided them into six groups: three groups of cataract surgery alone and phacovitrectomy were further divided by IOL diameter, which were further divided according to the IOL diameter used. At postoperative day 1 in the SF6 injection groups, the ACD and IOL positions were much smaller than those in the other groups. The ACD and IOL positions of the 6 mm IOL injection group in the early postoperative period of phacovitrectomy with SF6, particularly in the 6 mm IOL, were smaller than those in the other groups at 1 week; therefore, issues such as synechia or pupillary capture should be considered in the early postoperative period of phacovitrectomy with SF6, particularly in the 6 mm IOL.

Source link: https://europepmc.org/article/MED/36362658


The Effect of Melatonin on Analgesia, Anxiety, and Intraocular Pressure (IOP) in Cataract Surgery Under Topical Anesthesia.

Purpose This paper explored the effect of oral melatonin as a premedication before cataract surgery on pain score, fear, surgical conditions, and intraocular pressure during cataract surgery with phacoemulsification under topical anesthesia. Patients were randomly chosen to receive either sublingual melatonin 3 mg or placebo 60 min before surgery. Findings There was a significant difference between the two groups regarding pain following the surgery before being discharged from the recovery room. In T4, the mean pain score in the melatonin group was lower than the placebo group. Patients in the melatonin group in T3 and T4 were less anxious, with lower anxiety scores. Following receiving premedication, the IOP was noticeably lower in the case group at the time of the surgery. Conclusions This report found that 3 mg Sublingual melatonin premedication for patients undergoing cataract surgery under topical anesthesia improved patient's' anxiety, pain score, and IOP.

Source link: https://europepmc.org/article/MED/36323602


Early patient-reported outcomes of cataract surgery with implantation of the trifocal liberty 677MY intraocular lens: A pilot study.

Objective Objective: With a new model of trifocal diffractive intraocular lens, we will publish our first clinical and patient reports in the early postoperative period. Methods Pilot prospective review of the results of 26 eyes of 13 patients undergoing cataract surgery with the introduction of the trifocal diffractive IOL Liberty 677MY. According to another, 99. 0%, 84. 6%, and 92 percent of patients had achieved a binocular corrected distance, distance-corrected intermediate, and distance-corrected near visual acuity of 20/32 or better, respectively. Both patients were positively referred to, with some of them reporting dissatisfaction with the surgical results more than 0. 2 logMAR for defocus rates between +1. 00 and -3. 00 D. In 92 percent of patients, the postoperative vision did not result in difficulties in everyday life.

Source link: https://europepmc.org/article/MED/36314450


Therapeutic potential of pupilloplasty combined with phacomulsification and intraocular lens implantation against uveitis-induced cataract.

In uveitis-induced cataract, Aim To determine the therapeutic effects of pupilloplasty, phacomulation, and intraocular lens implantation in uveitis-induced cataracts. Methods Total 28 patients with uveitis-induced cataract were enrolled, including the following 28 patients. In two cases, the only intraoperative complication observed in 2 cases was the Iris hemorrhage. Following the surgery, normal intraocular pressure, the correct position of an intraocular lens, and improved visual improvement were all present, as well as improved visual acuity > 0. 5]. In iris physiology, pigment cell hyperplasia, pigment epithelium and stroma, inflammatory cell infiltration in iris, and neovascularization in iris surface reveals iris stroma, pigment cell hyperplasia, inflammatory cell infiltration in iris, and neovascularization in iris wall staining. Conclusion PPI improves the visual enhancement and prevents the long-term recurrence of uveitis in patients with uveitis-induced cataract, as well as those with preoperative intraocular pressure abnormalities and inflammation. And in a quiet region, stroma atrophy, pigment cell hyperplasia, and inflammatory cell infiltration occurs.

Source link: https://europepmc.org/article/MED/36262864


Incidence and Risk Factors of Repositioning Surgery to Correct Misalignment of Toric Intraocular Lenses After Cataract Surgery:A Single-Center Retrospective Observational Study.

Purpose: To correct misalignment of several toric intraocular lenses following cataract surgery, it is necessary to investigate the incidence and outcomes of repositioning surgery to correct misalignment of several toric intraocular lenses. AcrySof's repositioning surgery was significantly lower than multifocal toric IOLs, according to a Univariate analysis; also, a significant difference in age was found. Conclusion After cataract surgery, the incidence of repositioning surgery of toric IOLs was 2. 02 percent.

Source link: https://europepmc.org/article/MED/36223730


The Technique of Phacoemulsification and Intraocular Lens Implantation in Subluxated Cataract Surgery.

A retrospective review of subluxated cataract surgeries of 19 eyes in Kunhua Hospital Affiliated with Kunming University of Science and Technology between January 2017 and June 2021 was conducted. When the crystal nucleus is rotated out of the capsular bag and simultaneously perform horizontal chops over the capsule, we choose to use the rotate-and-chop phacoemulsification methods described. In 12 eyes, including 8 capsular tension rings implantation, single-piece intraocular lenses were implanted in the capsular bag, including 8 capsular tension rings. Vertical chops and emulsification over the capsular bag can be carried out during subluxated cataract surgery using phacoemulsification is a vital step to rotate and remove the lens from the capsule, as well as horizontal chops and emulsification over the capsular bag. Overall, the incision procedure and the surgical procedure to promote capsular stabilization in this research have resulted in a safe approach and positive results in cataract surgery for subluxation.

Source link: https://europepmc.org/article/MED/36248257


Intraocular pressure screening during high-volume cataract surgery outreach in Ethiopia.

Both the development and progression of visual field defects can be reduced early detection and treatment of elevated intraocular pressures. Using rebound tonometry with an iCare tonometer model IC100, IOP was determined on the surgical eye of patients before undergoing small incision cataract surgery using rebound tonometry. In 604 eyes of 595 patients who received SICS, corneal pressure was determined. All patients with elevated IOP were treated with a temporal approach during SCIS, allowing for potential trabeculectomy at a later date. IOP screening during high-volume cataract outreach campaigns can be carried out safely, accurately, and on a large scale with limited funding and additional training. Pre-operative IOP measurements can be used to enhance surgical care at the time of cataract surgery as well as help establish a long-term follow-up for patients with glaucoma.

Source link: https://europepmc.org/article/MED/36199054


Visual Outcomes and Optical Quality of Accommodative, Multifocal, Extended Depth-of-Focus, and Monofocal Intraocular Lenses in Presbyopia-Correcting Cataract Surgery: A Systematic Review and Bayesian Network Meta-analysis.

Importance A bayesian network meta-analysis may help compare the various types of multifocal and monofocal intraocular lenses used in clinical practice. Selection of the study based on the findings' findings, randomized clinical trials assessing multifocal IOLs in patients who underwent bilateral cataract extraction were based on the literature. Findings This NMA contained 27 studies involving 2605 patients. For those uncorrected near visual acuity, trifocal IOLs, and old bifocal diffractive IOLs, superior visual acuity was achieved by monofocal IOLs. IOLs with improved visual acuity and extended depth-of-focus IOLs had superior visual acuity than monofocal IOLs in uncorrected intermediate visual acuity study. All multifocal IOLs were comparable with monofocal IOLs for uncorrected distant visual acuity. There were no statistical differences between multifocal and monofocal IOLs in terms of contrast sensitivity, glare, or halos among multifocal and monofocal IOLs, although there were no statistical differences between multifocal and monofocal IOLs in terms of contrast sensitivity, glare, or halos. Conclusions and relevance For patients with a multifocal IOL due to presbyopia, IOL implantation of a trifocal IOL may be the most effective treatment for patients without compromising distant visual acuity.

Source link: https://europepmc.org/article/MED/36136323


Morphological changes in the iridocorneal angle and their relationship with intraocular pressure after infantile cataract surgery.

Methods and Results Children who underwent primary infantile cataract surgery were included, including 18 with unilateral cataracts and 23 with bilateral cataracts, were examined, as were 41 children under the age of 41. The iridocorneal angle was determined by two gonioscopic examinations before the primary lens removal and primary intraocular lens implantation. The anatomical changes in the iridocorneal angle and the relationship between intraocular pressure and iridocorneal angle changes were also investigated. The main changes after pediatric cataract surgery have been an increase in trabecular meshwork pigmentation and number of iris processes, IOP gradually increase, with positive correlations to trabecular meshwork pigmentation and anterior insertion of iris processes.

Source link: https://europepmc.org/article/MED/36124183

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* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions