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42,335 result(s) for "Cataract surgery"
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Visual outcomes and complications of manual small-incision cataract surgery in patients with pseudoexfoliation
Purpose: Pseudoexfoliation is an age-related fibrillopathy characterized by the deposition of fibrillar material in the eye with an increased risk of complications during cataract surgery. Aim was to study visual outcomes and complications in patients with pseudoexfoliation undergoing manual small-incision cataract surgery (MSICS). Methods: Prospective observational study was performed on 152 patients with pseudoexfoliation above 50 years undergoing MSICS in a tertiary hospital from December 2016 to November 2017. Intraoperative and postoperative complications were documented with follow-up on postoperative day 1, 1st week, 1st month, and 3rd month. Results: Preoperative small pupil was noted in 49 eyes (32.2%), and 19 (12.5%) required intraoperative measures. Intraocular complications noted were zonular dialysis in five (3.3%), posterior capsular rupture in one (0.7%), and iridodialysis in one (0.7%). On postoperative day 1, the most common complication was corneal edema in 134 patients but clinically significant in only 23 (15.1%). Postoperative complications at 3 months were irregular pupil in 17 cases and decentered IOL in three cases. Intraocular pressure decreased with each visit [preoperative mean: 14.39 (±3.4) and 13.37 (±2.0) 12.53 (±1.4) mm Hg at 1 and 3 months, respectively]. There was a significant improvement in vision from the first day mean pinhole vision of 0.26 (±0.24) to mean best corrected visual acuity (BCVA) of 0.09 (±0.22) and 0.07 (±0.22) at 1 and 3 months, respectively. Mean endothelial cell loss was 193.16 (7.79%) and 266.01 (10.68%) at 1 and 3 months, respectively. Conclusion: Pseudoexfoliation has an increased risk of complications during cataract surgery. MSICS gives good outcomes in terms of visual recovery and postoperative outcomes.
The Latest Evidence with Regards to Femtosecond Laser-Assisted Cataract Surgery and Its Use Post 2020
Femtosecond laser-assisted cataract surgery (FLACS) was introduced with the hope of making cataract surgery safer and making the refractive result more predictable. It is only in the last four years that level 1 prospective randomised controlled trials (RCT) using current technology have been published. These, along with a meta-analysis of recent studies have shown that there seems to be little long-term visual benefit when using FLACS with monofocal lenses. The promised decrease in ultrasound energy required to remove a cataract has not been consistently demonstrated. There is level one evidence that the rate of posterior capsular rupture is less with FLACS using modern software. The round capsulotomy may be of increasing importance with the uptake of toric, multifocal and extended depth of focus lenses where a predictable capsulotomy size and precise placement of the lens becomes more important.
Intraoperative Complication Rates in Cataract Surgery After Resuming Surgery Following the COVID-19 Shutdown
To evaluate surgeon performance and intraoperative complication rates of cataract surgery after resumption of elective surgeries following the operating room (OR) shutdown from the coronavirus disease 2019 (COVID-19) pandemic. Subjective surgical experience is also evaluated. This is a retrospective comparative study which analyzes cataract surgeries performed at an inner city, tertiary academic center. Cataract surgeries were categorized into Pre-Shutdown (January 1-March 18, 2020), and Post-Shutdown, for all cases which occurred after surgeries resumed (May 11-July 31, 2020). No cases were performed between March 19 and May 10, 2020. Patients undergoing combined cataract and minimally invasive glaucoma surgery (MIGS) were included, but MIGS complications were not counted as cataract complications. No other combined cataract-other ophthalmic surgeries were included. A survey was used to gather subjective surgeon experience. A total of 480 cases (n=306 Pre-Shutdown and n=174 Post-Shutdown) were analyzed. Although there was a higher frequency of complex cataract surgeries performed Post-Shutdown (5.2% vs 21.3%; p<0.00001), complication rates before versus after the shutdown were not statistically significant (9.2% vs 10.3%; p=0.75). Phacoemulsification was the step of cataract surgery in which residents were most concerned about when returning to the OR. After the surgical hiatus due to COVID-19, significantly more complex cataract surgeries were reported and surgeons reported higher general anxiety level when first returning to the OR. Increased anxiety did not lead to higher surgical complications. This study provides a framework to understand surgical expectations and outcomes for patients whose surgeons faced a prolonged two-month hiatus from cataract surgery.
Clinical Outcomes of a Non-Diffractive Extended Depth-of-Focus IOL in Eyes with Mild Glaucoma
To evaluate the clinical outcomes of a non-diffractive, wavefront-shaping extended depth-of-focus (EDOF) intraocular lens (IOL) in eyes with mild open-angle glaucoma (OAG). Private practice; Sioux Falls, South Dakota. Prospective, open-label, interventional study. In total, 52 eyes of 26 patients with mild OAG were enrolled and completed the study. All patients were bilaterally implanted with a non-diffractive, wavefront-shaping EDOF IOL. Seventy-seven percent of the patients were implanted with a trabecular microbypass stent at the time of surgery. Primary outcome measures included binocular corrected and uncorrected distance visual acuity (CDVA and UDVA), uncorrected intermediate and near visual acuity (UIVA and UNVA) and contrast sensitivity as measured by a Pelli-Robson chart. A subjective questionnaire was also administered to patients. At 4 months postoperative, the mean binocular UDVA and CDVA was 0.03 ± 0.12 and -0.06 ± 0.07, respectively. The mean UIVA and UNVA were 0.18 ± 0.12 and 0.31 ± 0.18, respectively. Eighty-five percent of the subjects achieved ≥20/25 UDVA and 77% of the subjects achieved ≥20/32 UIVA at 4 months postoperative. The mean binocular mesopic contrast sensitivity was 1.76 ± 0.16 at a spatial frequency of 1 cycle-per-degree (cpd). Eighty-five percent of the subjects reported they would choose the same lens and 1 subject reported they would choose a different IOL if it meant reduced spectacle independence. The non-diffractive, wavefront-shaping EDOF IOL can be safely implanted in eyes with mild, pre-perimetric open-angle glaucoma with favorable uncorrected distance and intermediate visual acuity. The contrast sensitivity measurements were favorable and the subjective questionnaire revealed satisfactory spectacle independence and patient satisfaction.
The output of cataract surgery performed by trained non-ophthalmologist physicians in rural areas: study of cataract outcomes and up-take of services report 7
BackgroundCataract is the leading cause of blindness worldwide and surgery can restore vision in most patients. Some patients have little access to surgical services due to lack of cataract surgeons and the unaffordable costs. In 2005 we built a service model that trained rural non-ophthalmologist physicians to perform cataract surgeries in rural China. This study evaluates the long-term impacts of this model.MethodsWe conducted a retrospective cohort study to analyze patients’ hand-written medical records and electronic outpatient record between January 2005 and December 2019 at two rural health clinics in Southern China.ResultsIn total, 34,601 patients (49,942 eyes) underwent cataract surgery by non-ophthalmologist physicians from 2005 to 2019.Visual acuity was clearly documented in 38,251 eyes. Before surgery, the unaided distance visual acuity (UDVA) of 60.7% (23,205/38,251) eyes was less than 0.05 decimal. On the first day after surgery, the percentage of UDVA  < 0.05 eyes was reduced to 6.0%, and 96.7% (36,980/38,251) of the eyes achieved a better UDVA compared to pre-operation. Surgical-related complications occurred in 218 eyes. The most common complication was posterior capsule rupture (114, 0.23%). 44.3% (15,341/34,601) of the patients chose to have a second eye cataract surgery (SECS) in the same clinic. At one of the outpatient clinics, 21,595 patients received basic eye care apart from cataract surgery between 2018 and 2020.ConclusionsNon-ophthalmologist physicians trained for cataract surgeries in rural clinics can improve cataract related visual acuity and basic eye care to the local population.
Pseudophakic cystoid macular edema: update 2016
Pseudophakic cystoid macular edema (PCME) is the most common complication of cataract surgery, leading in some cases to a decrease in vision. Although the pathogenesis of PCME is not completely understood, the contribution of postsurgical inflammation is generally accepted. Consequently, anti-inflammatory medicines, including steroids and nonsteroidal anti-inflammatory drugs, have been postulated as having a role in both the prophylaxis and treatment of PCME. However, the lack of a uniformly accepted PCME definition, conflicting data on some risk factors, and the scarcity of studies comparing the role of nonsteroidal anti-inflammatory drugs to steroids in PCME prevention make the problem of PCME one of the puzzles of ophthalmology. This paper presents an updated review on the pathogenesis, risk factors, and use of anti-inflammatory drugs in PCME that reflect current research and practice.
Twelve month outcome of manual small-incision cataract surgery in Assiut, Egypt: A retrospective study with a large sample size
BACKGROUND: To assess the visual outcome of manual small-incision cataract surgery (MSICS) as well as safety, cost, and time of the procedure. PATIENTS AND METHODS: A retrospective study involving candidates for cataract surgery with baseline-corrected distance visual acuity (CDVA) ≤20/120. Visual acuity (VA) was the primary outcome measure while surgical complications, cost, and time of surgery were the secondary outcome measures. Follow-up visits were scheduled at 1 day, 1 week, 1 month, and at 6 and 12 months following surgery. RESULTS: The study enrolled 3007 patients with a mean age of 66.45 ± 17.3 years. Out of 3007 patients, 2774 (92.2%) were legally blind before surgery (CDVA <20/200) which was significantly reduced to 55 patients (1.9%) by 1 month following surgery. Uncorrected distance visual acuity was 20/60 or better in 2098 eyes (69.8%) at 1 month, in 2035 eyes (67.7%) at 6 months, and in 2017 eyes (67.1%) at 12 months. The posterior capsular rupture was the most common intraoperative complication. Corneal edema was the most common immediate postoperative complication while the development of posterior capsular opacification was the leading cause for later impaired VA. The mean cost was approximately equivalent to 20 US dollars. The median duration of surgery was 10 min. CONCLUSION: MSICS is a safe, cost-effective, and time-saving technique for improving the vision of cataract patients in areas with high cataract surgery volume and limited facilities.
Pros and Cons of Immediate Sequential Bilateral Cataract Surgery from a Patient Perspective: A Survey
The aim of the study was to analyze patients’ experiences with immediate sequential bilateral cataract surgery (ISBCS). An anonymous survey was sent by post to patients who underwent ISBCS between 1 May 2020 and 30 April 2022. A total of 195 participants completed the survey. Specifically, 94.6% of the respondents were satisfied with the possibility of having both eyes treated during one surgical procedure, 89.7% would choose ISBCS again if offered a choice, and 89.2% would recommend this procedure to their family members. ISBCS provided a subjective benefit for 84.6% of the respondents. The most commonly reported ISBCS-related problems were the necessity to sleep in a supine position (32.8%), inability to read shortly after the surgery (27.7%), having both eyes protected with a dressing (24.6%), and application of eyedrops to both eyes at the same time (17.4%). All patients were able to identify some pros of ISBCS, with the most common being single stay in the operating room (82.6%), lower number of visits to the clinic (62.6%), quick normalization of eyesight (61%), time savings for family members (54.9%), quick adjustment of reading glasses (32.3%), and economical aspects (23.6%). The perception of difficulties associated with ISBCS and the benefits offered by this procedure differed depending on patients’ gender, age, marital status, education, place of residence, occupational activity, level of care dependence, and everyday activities. Understanding patients’ opinions about ISBCS provides insight into the advantages and disadvantages of this procedure from a broader perspective.
Impact of scleral cautery on limbal vasculature after cataract surgery assessed using optical coherence tomography angiography
We investigate the influence of scleral cautery during cataract surgery on limbal vascular density and remodeling using anterior segment optical coherence tomography angiography (AS-OCTA). Twenty eyes of 20 patients who underwent cataract surgery with a sclerocorneal incision were included. Patients were divided into two groups: non-cautery ( n  = 10) and cautery ( n  = 10). The area around the incision site was scanned using AS-OCTA before surgery and at 1, 3, 5, 7, 14, 21, 28, and 90 days postoperatively. Images were analyzed to depict conjunctival vasculature (surface to a depth of 200 μm) and intrascleral vasculature (depth of 200 to 1000 μm). Vascular density was evaluated using ImageJ software. In the non-cautery group, intrascleral vascular density significantly increased during the wound-healing period up to 21 days postoperatively. Cautery application completely diminished this effect, resulting in significantly reduced intrascleral vascular density in the cautery group compared to the non-cautery group until 5 days after surgery. On the seventh day and later, intrascleral vascular density in the cautery group recovered, but the vascular pattern did not return to its preoperative state even at 90 days after surgery. Conjunctival flap vascular density was reduced for 28 days after surgery, with cautery application further decreasing conjunctival vascular density. AS-OCTA enabled separate observation of conjunctival and intrascleral vasculature. Intrascleral blood flow significantly increased after cataract surgery, but scleral cauterization markedly blocked this effect. The vascular reconstruction process following cataract surgery continued for almost a month, with cautery application leading to prolonged vascular disruption and altered vascular patterns.
Femtosecond laser-assisted cataract surgery versus conventional phacoemulsification: comparison of internal aberrations and visual quality
PurposeTo compare the internal aberrations and optical quality after femtosecond laser-assisted cataract surgery (FLACS) and conventional phacoemulsification cataract surgery (CPCS).MethodsThis study included patients who received FLACS or CPCS from January 2016 to July 2019. Postoperative examinations included wavefront measurements under pupil diameters of 3.0 mm and 5.0 mm, intraocular lens (IOL) decentration, visual acuity (VA), and refractive outcomes. Visual quality was measured with Strehl ratio and modulation transfer function (MTF). Subgroup analyses were conducted based on monofocal or multifocal-extended depth of focus (EDOF) IOL.ResultsThe study consisted of 221 eyes (105 eyes in FLACS and 116 eyes in CPCS). With a pupil diameter of 5.0 mm, FLACS demonstrated a significantly lower root mean square of total internal aberration (P = 0.004), higher order aberrations (HOAs) (P = 0.034), tilt (P = 0.049), coma (P = 0.004), and spherical aberration (P = 0.014). IOL tilt was found to be positively correlated with total internal aberration (P < 0.001), HOAs (P < 0.001), and coma (P < 0.001). The FLACS group presented significantly smaller IOL decentration than the CPCS group (P < 0.001), but there were no significant differences in terms of VA and refractive outcomes between groups. In the multifocal-EDOF subgroup, Strehl ratio and MTF values were significantly higher in the femtosecond group with a 3.0-mm pupil.ConclusionFLACS induced significantly lower values of IOL tilt, decentration, and internal aberrations compared with the CPCS group with a pupil diameter of 5.0 mm, while no significant differences were found in the VA or optical quality over long-term observation.Trial registrationThis trial was registered at www.chictr.org.cn (registration number ChiCTR2000038965).