共查询到20条相似文献，搜索用时 31 毫秒
1.
Jay C. Wang Christopher J. Rudnisky Michael W. Belin Joseph B. Ciolino 《Canadian journal of ophthalmology. Journal canadien d'ophtalmologie》2018,53(3):284-290
Objective
To investigate the visual and anatomical outcomes of Boston keratoprosthesis (Kpro) type 1 reimplantation.Design
Subgroup analysis of multicentre prospective cohort study.Participants
Of 303 eyes that underwent Kpro implantation between January 2003 and July 2008 by 1 of 19 surgeons at 18 medical centres, 13 eyes of 13 patients who underwent reimplantation of Boston Kpro type 1 were compared with 13 eyes of 13 diagnosis-matched patients who underwent initial implantation.Methods
Forms reporting preoperative, intraoperative, and postoperative parameters were prospectively collected and analyzed. Main outcome measures were Kpro retention and logMAR visual acuity.Results
After a mean follow-up time of 17.1 ± 17.6 months, the retention of both initial and repeat Kpro implantation was 92.3% (12/13 in both groups), and 62% of initial implantation and 58% of repeat implantation eyes achieved visual acuity better than 20/200. Vision worse than 20/200 was often due to glaucoma or posterior segment pathology. Best-recorded logMAR visual acuity was significantly improved postoperatively in both groups (p < 0.001), and there was no statistically significant difference in final logMAR visual acuity between the 2 groups (p = 0.89). Sterile keratolysis (n = 4) and fungal infection (n = 5) were the most common causes of initial Kpro failure in the repeat Kpro group. The single failure in the repeat Kpro implantation group was due to fungal keratitis, and in the control group it was related to Kpro extrusion.Conclusions
Repeat Kpro implantation is a viable option after failed initial Kpro, with visual and anatomical outcomes comparable to those of initial procedures. 相似文献2.
Kelsey A. Roelofs Chris J. Rudnisky 《Canadian journal of ophthalmology. Journal canadien d'ophtalmologie》2018,53(5):533-537
Objective
To evaluate the refractive outcomes after anterior capsular tear (ACT).Design
Retrospective case–control study.Participants
After ethics approval, the surgical operative records of 4301 consecutive patients undergoing cataract surgery by a single surgeon were reviewed for cases of ACT.Methods
All ACTs were managed using a balancing incision of the capsulorrhexis margin 180 degrees away from the tear. If the patient’s other eye had undergone cataract surgery by the same surgeon, it was included as a control.Results
Fifty-one eyes of 51 patients were complicated by ACT (incidence = 1.2%). The mean age of patients in the study was 64.2 ± 12.1 years. Of the 51 patients with ACT, 34 underwent contralateral surgery. These eyes were used as the control group. There was no significant difference in preoperative visual acuity (p = 0.683) or proportion of eyes that received in-the-bag intraocular lens placement (p = 0.347) between groups (ACT = 92.2%; control = 97.1%). In 3 ACT eyes, the tear extended into the posterior capsule (5.9%), and although this did not occur in control eyes, this difference was not statistically significant (p = 0.150). There was no difference in best-corrected final logMAR visual acuity between groups (p = 0.424) or postoperative spherical equivalent between ACT (?0.23 ± 1.2D) and control (?0.15 ± 0.62D) eyes (p = 0.985).Conclusions
Cataract extraction complicated by ACT can result in equivalent visual and refractive outcomes as in uncomplicated surgery. The technique used in this study prevented extension of ACT to the posterior capsule in 94.1% of cases. 相似文献3.
Verena R. Juncal David R. Chow Natàlia Vilà Michael A. Kapusta R. Geoff Williams Amin Kherani Alan R. Berger 《Canadian journal of ophthalmology. Journal canadien d'ophtalmologie》2018,53(5):441-446
Objective
To compare the anatomical and visual outcomes of patients with bilateral macular holes (MH) who have been treated with pars plana vitrectomy in one eye and intravitreal ocriplasmin in the fellow eye.Design
Multicentre, retrospective case series.Participants
Twenty-two eyes of 11 patients with bilateral MH treated with vitrectomy in one eye and ocriplasmin in the other were included. Patients were followed-up by 5 vitreoretinal surgeons from 3 retinal practices in Canada.Methods
All charts were reviewed for data collection, and optical coherence tomography (OCT) scans pre- and posttreatment were evaluated.Results
MH closed primarily in 36.4% (n = 4) of the ocriplasmin-treated eyes and in 90.9% (n = 10) of the vitrectomy-treated eyes (p = 0.031). The 4 successfully treated ocriplasmin MH were preceded by a vitreomacular traction (VMT) release. Three additional ocriplasmin-treated eyes achieved a VMT release without MH closure. All persistent MH (100%) closed with subsequent vitrectomy, with no significant difference in final best-corrected visual acuity (BCVA) between those who achieved MH closure with primary or secondary interventions (p = 0.073). Final BCVA improved from logMAR 0.85 ± 0.34 to 0.37 ± 0.22 (p = 0.005) in the vitrectomy eyes and from 0.56 ± 0.28 to 0.28 ± 0.16 (p = 0.009) in the ocriplasmin eyes, with no significant difference in final BCVA between treatments (p = 0.306). Postoperative ellipsoid zone disruption persisted more frequently in vitrectomy-treated eyes.Conclusion
Both procedures were associated with improved visual outcomes, but eyes initially treated with vitrectomy had a higher primary MH closure rate. On OCT, patients had more outer structural changes in vitrectomy eyes than in ocriplasmin eyes. 相似文献4.
Steven S. Bae Clara C. Chan 《Canadian journal of ophthalmology. Journal canadien d'ophtalmologie》2018,53(6):553-559
Introduction
To evaluate the indications and outcomes of manual blade superficial keratectomyStudy design
Retrospective, nonrandomized, consecutive case seriesMethods
Database search of patients from 2012-2017 who underwent superficial keratectomy was conducted at a tertiary care hospital cornea clinic. Charts of 121 patients (156 eyes) were reviewed who had at least 4 weeks of follow-up and both preoperative and postoperative measurements of best-corrected visual acuity or corneal cylinder. Outcome measures included: patient demographics, surgical indication, prior ocular history, best-corrected visual acuity (BCVA) changes, corneal and refractive astigmatism changes, recurrence of pathology, additional treatments required, and intraoperative and postoperative complications.Results
Mean patient age at time of operation was 63.3 (±14.8), 39% were male. Indications included epithelial basement membrane dystrophy, recurrent corneal erosion syndrome, Salzmann nodular degeneration, band keratopathy, and suspected ocular surface neoplasia. In eyes with epithelial basement membrane dystrophy, mean BCVA (20/47 to 20/40, P = 0.033), refractive astigmatism (1.76 ± 1.83 D to 1.15 ± 1.08 D, P = 0.010), and corneal astigmatism (1.44 ± 0.88 D to 1.06 ± 0.88 D, P = 0.022) significantly improved. Twenty-four percent (5/21) of eyes with recurrent erosions had symptoms return at a mean 6.5 months follow-up. No intraoperative complications were noted. The epithelium healed completely in all 156 eyes at final follow-up.Conclusion
Superficial keratectomy is a simple, safe procedure that can be performed for a variety of conditions to improve visual acuity, reduce corneal astigmatism, and alleviate symptoms secondary to ocular surface pathology. 相似文献5.
Zofia Michalewska Michael W. Stewart Maurice B. Landers Maciej Bednarski Ron A. Adelman Jerzy Nawrocki 《Canadian journal of ophthalmology. Journal canadien d'ophtalmologie》2018,53(4):402-407
Objective
To determine the efficacy of vitrectomy in eyes with treatment-naïve diabetic macular edema (DME).Methods
Consecutive patients with treatment-naïve DME who underwent pars plana vitrectomy with internal limiting membrane peeling at a single institution were identified from the electronic medical records. Morphologic and visual acuity changes from baseline were analyzed at both the primary temporal endpoint (6 months) and the final examination with the investigators. The primary outcome measures included changes in best-corrected visual acuity (BCVA) and central retinal thickness (CRT).Results
Forty-four eyes of 44 patients were included in this retrospective study. The mean BCVA improved significantly from baseline until the 6-month primary endpoint (1.35 logMAR vs 0.83 logMAR, p < 0.001) and stabilized through the final examination (0.77 logMAR). The BCVA improved by at least 0.1, 0.3, and 0.6 logMAR in 26 (60%), 24 (55%), and 14 (32%) of eyes, respectively, whereas it worsened by 0.3 logMAR in only 1 (2%) eye. Final BCVA correlated inversely with duration of diabetes (p = 0.01), presence of an epiretinal membrane (p = 0.02), and initial visual acuity (p = 0.03). Mean CRT decreased significantly from baseline through 6 months (595 µm vs 266 µm; p < 0.001), and edema recurred in only 3 eyes (6%), one of which was subsequently treated with intravitreal bevacizumab.Conclusions
Pars plana vitrectomy significantly improves macular edema and visual acuity in eyes with treatment-naïve DME. Prospective randomized trials are needed to better determine the efficacy of early vitrectomy. 相似文献6.
Zaid Shalchi Mali Okada Alice Bruynseels David Palethorpe Ammar Yusuf Rohan Hussain Christina Herrspiegel Antonio Scazzarriello Abubakar Habib Razia Amin Ranjan Rajendram 《Canadian journal of ophthalmology. Journal canadien d'ophtalmologie》2018,53(4):415-419
Objective
To investigate the effect of serum glycosylated hemoglobin (HbA1c) on the outcomes of ranibizumab therapy for diabetic macular edema (DME).Design
Retrospective cohort study.Participants
Patients receiving ranibizumab injections for centre-involving DME in a National Health Service setting.Methods
The Moorfields OpenEyes database was used to study eyes with DME treated with ranibizumab from October 2013 to November 2015 at the Moorfields City Road, Ealing, Northwick Park, and St George’s Hospital sites. Only eyes receiving a minimum of 3 injections and completing 12 months of follow-up were included. If both eyes received treatment, the first eye treated was analyzed. When both eyes received initial treatment simultaneously, random number tables were used to select the eye for analysis. HbA1c was tested at the initiation of ranibizumab treatment. Multivariate regression analysis was used to identify relationships between HbA1c and the outcome measures.Outcomes
The primary outcome was change in visual acuity (VA) Early Treatment of Diabetic Retinopathy study (ETDRS) letters. The secondary outcomes were change in central subfield thickness (CSFT) and macular volume (MV), as well as number of injections in year 1.Results
Three hundred and twelve eyes of 312 patients were included in the analysis. HbA1c was not related to change in VA (p = 0.577), change in CSFT (p = 0.099), change in MV (p = 0.082), or number of injections in year 1 (p = 0.859).Conclusions
HbA1c is not related to functional or anatomical outcomes at 1 year in DME treated with ranibizumab. 相似文献7.
David S. Sands Stephanie C.Y. Chan Chloe C. Gottlieb 《Canadian journal of ophthalmology. Journal canadien d'ophtalmologie》2018,53(4):349-353
Objective
To assess corticosteroid-sparing and inflammation control in patients with noninfectious scleritis treated with methotrexate.Design
Retrospective review.Participants
Patients who received methotrexate treatment for noninfectious scleritis and who had 12 months of follow-up after treatment initiation were included in this review.Methods
The clinical records of noninfectious scleritis patients presenting at the University of Ottawa Eye Institute between September 1, 2010 and December 31, 2014 treated with methotrexate were retrospectively reviewed. Seventeen patients (21 eyes) were included in the study. Main outcome included inflammation control and corticosteroid-sparing success. Secondary outcomes were reduction of immunosuppression load and best-corrected visual acuity.Results
The proportion of eyes with corticosteroid-sparing success was 69.2% at 3 months and 92.3% at 12 months. The proportion of eyes that achieved inflammation control was 61.9% at 3 months and 90.5% at 12 months. The corticosteroid immunosuppression load at treatment start was 1.9 ± 2.07 and at 12 months was 0.48 ± 1.03 (p < 0.01). There was no statistically significant difference in best-corrected visual acuity.Conclusions
The treatment of noninfectious scleritis with methotrexate appears to be effective at both achieving steroid-sparing success and controlling inflammation during 12 months of therapy. Immunosuppression load decreased significantly over 12 months of therapy while best corrected visual acuity was stable. 相似文献8.
Erika Massicotte Salima Hassanaly Marie-Lyne Bélair Karin Oliver Eric Fortin 《Canadian journal of ophthalmology. Journal canadien d'ophtalmologie》2018,53(5):435-440
Objective
Idiopathic retinal vasculitis, aneurysms, and neuroretinitis (IRVAN) syndrome is a rare entity with a potentially poor visual prognosis. Our objective is to review the clinical presentation and long-term outcomes of patients with IRVAN syndrome.Design
This is a retrospective case series.Methods
We reviewed the charts of all the patients diagnosed with IRVAN syndrome at our tertiary care centre from 2002 to 2015.Results
We included the long-term clinical outcomes of 7 eyes (5 patients) diagnosed with IRVAN syndrome. After a mean follow-up of 84.9 months, best-corrected visual acuity was 20/40 or better in the majority of eyes (70%). Four (57.1%) patients had systemic conditions, namely, multiple sclerosis, ischemic stroke, and positive antiphospholipid titres. All eyes were treated with laser photocoagulation. Four (40%) eyes received adjunctive intravitreal bevacizumab injections.Conclusion
IRVAN is an important diagnosis for clinicians to recognize. When treated in a timely manner, long-term visual outcomes can be favourable. 相似文献9.
10.
Amrit S. Rai Nir Shoham-Hazon Panos G. Christakis Amandeep S. Rai Iqbal Ike K. Ahmed 《Canadian journal of ophthalmology. Journal canadien d'ophtalmologie》2018,53(2):124-130
Objective
To compare the surgical outcomes of combined phacoemulsification with either Ahmed glaucoma valve (AGV) or Baerveldt glaucoma implant (BGI).Design
Retrospective cohort study.Participants
A total of 104 eyes that underwent combined phacoemulsification with either AGV (PhacoAGV; n = 57) or BGI (PhacoBGI; n = 47) implantation.Methods
Failure was defined as uncontrolled intraocular pressure (IOP; <5 mm Hg, ≥18 mm Hg, or <20% reduction), additional glaucoma surgery, vision-threatening complications, or progression to no-light-perception vision.Results
The PhacoAGV group was older (p = 0.03), had poorer baseline visual acuity (VA; p = 0.001), and had fewer previous glaucoma surgeries (p = 0.04). Both groups had similar baseline IOP (PhacoAGV: 26.4 ± 8.3 mm Hg; PhacoBGI: 25.7 ± 7.3; p = 0.66) and glaucoma medications (PhacoAGV: 3.8 ± 1.0; PhacoBGI: 3.6 ± 1.5; p = 0.54). At 2 years, failure rates were 44% in the PhacoAGV group and 23% in the PhacoBGI group (p = 0.02). Both groups had similar mean IOP reduction (PhacoAGV: 45%; PhacoBGI: 47%, p = 0.67) and medication use reduction (PhacoAGV: 47%; PhacoBGI: 58%, p = 0.38). The PhacoBGI group had higher IOP and medication use up to 1 month (p < 0.05). Both groups improved in VA from baseline (p < 0.05) and had similar overall complication rates (p = 0.31). The PhacoBGI group required more overall interventions (p < 0.0005).Conclusions
This comparative study found no difference in IOP, glaucoma medications, or complication rates between PhacoAGV and PhacoBGI at 2 years, despite BGIs being implanted in patients at higher risk for failure. The PhacoAGV group had higher failure rates at 2 years. Both groups had significant improvements in VA due to removal of their cataracts. The PhacoBGI group required more interventions, but most of these were minor slit-lamp procedures. 相似文献11.
Sherif Eissa Nashwa Badr Eldin 《Canadian journal of ophthalmology. Journal canadien d'ophtalmologie》2018,53(6):560-567
Objective
We compare the predictability, safety, and efficacy of posterior chamber phakic intraocular lens (PCpIOL) versus small-incision lenticule extraction (SMILE) for correcting myopic anisometropia in amblyopic children.Methods
A prospective randomized study enrolled 30 children, aged 4–12 years, with unilateral myopic anisometropic amblyopia whose refraction ranged between ?5 and ?10 diopters (D) and myopic astigmatic error ?1 to ?6 D. Patients were subdivided into group A for unilateral PCpIOL implantation and implantable collamer lens (Visian ICL/TICL) of V4C design and group B for SMILE procedure. Pre- and postoperative corrected distance visual acuity (CDVA), uncorrected visual acuity, and cycloplegic refractive spherical equivalent (CRSE) were performed in all patients and compared between both groups. Follow-up was for at least 18 months.Results
Of the 15 children in group A, 12 (80%) revealed prevention of amblyopia and improvement in CDVA of 3–6 lines, and 3 children (20%) gained 1–3 lines. In group B, 6 (40%) eyes gained 3–5 lines, 6 (40%) eyes gained 1–3 lines, and 3 (20%) children gained 0–1 line. Stereoacuity improved in 93.33% of cases. Mean CRSE decreased in both groups 18 months postoperative (p < 0.001). Improvement in stereoacuity occurred in 86.66% of cases.Conclusions
To eliminate significant anisometropic myopia in children who are noncompliant with conventional treatment, PCpIOL or SMILE may be considered as alternative modalities of treatment. Being an extraocular procedure, SMILE was found to be a safer procedure with fewer and less serious complications compared to ICL. 相似文献12.
Mark Xu Timothy Ratzlaff Vladimir Kratky 《Canadian journal of ophthalmology. Journal canadien d'ophtalmologie》2018,53(6):605-608
Objective
To evaluate a novel, simple, noninvasive method (known as the “bitter taste test”) of establishing nasolacrimal duct patency in healthy asymptomatic eyes.Design
Double-blind, randomized controlled pilot study.Participants
Healthy asymptomatic medical students, residents, and allied health staff at our institution.Methods
Participants, aged 18–35 years (n = 28) with assumed normal lacrimal function, were randomized to the interventional group (100 parts per million denatonium benzoate in sterile water, n = 14) or to the control group (sterile water only, n = 14). All participants were pretreated with topical tetracaine in their right conjunctival cul-de sac, followed by 3 drops of the experimental solution spaced 1 minute apart. The primary outcome was whether participants reported a strong, persistent bitter taste. The secondary outcome was the time-to-taste. All participants received lacrimal irrigation. The Fisher’s exact test was done using GraphPad online software.Results
All participants in the interventional group reported the presence of the bitter solution. None of the participants in the control group reported bitterness (p < 0.001, Fisher’s exact test). Time-to-taste was within 15 minutes for 71% of the intervention group (n = 10); within 30 minutes for 79% (n = 11); and within 2 hours for 100% (n = 14). The bitterness typically persisted for 1–2 hours. All participants had normal lacrimal systems to irrigation. No adverse events were reported.Conclusions
The bitter taste test demonstrates a promising ability to assess nasolacrimal duct patency under physiologic conditions in healthy participants. Further research is needed to validate this method in a clinical sample of patients with nasolacrimal duct obstruction. 相似文献13.
Reinhard Angermann Claus Zehetner Patrick Sidoroff Inga Waltl Gerhard Kieselbach Martina Kralinger 《Canadian journal of ophthalmology. Journal canadien d'ophtalmologie》2018,53(6):632-636
Objective
We compared visual and macular morphological outcomes after epiretinal membrane (ERM) peeling, with and without IVTA treatment.Design
Interventional, retrospective, consecutive case-control study.Participants
Forty-one eyes of 41 participants (17 men, 24 women) were included. Twenty-one were treated by standard vitrectomy and peeling (controls) and 20 patients received intravitreal triamcinolone after vitrectomy and peeling.Methods
Pre-and postoperative letter score and central foveal thickness (CFT) through the foveal centre were compared between both groups. Best-corrected visual acuity (BCVA) was measured using Snellen charts and converted to logMAR for statistical analyses.Results
CFT and BCVA had improved by the 6-month follow-up from baseline. In the control group, the mean logMAR BCVA improved from 0.57 (SD: 0.22) to 0.21 (0.17) (p < 0.01), and the mean CFT reduced from 462.5 (98.6) µm to 329.8 (82.7) µm (p < 0.01). The mean logMAR BCVA of the IVTA group improved from 0.73 (0.17) to 0.36 (0.31) (p < 0.01), and the mean CFT reduced from 561.45 (131.0) µm to 339.25 (72.6) µm (p < 0.01). Visual improvement and CFT did not differ significantly at follow up (p = 0.583; p= 0.85). Significant reduction of CFT is seen in the IVTA group (p = 0.048).Conclusions
Visual acuity and macular morphology improved after ERM peeling, with or without IVTA. Although conjunctive IVTA did not significantly influence visual outcome at 6 months, a significant decrease in CFT was observed after IVTA administration. 相似文献14.
Oded Ohana Igor Kaiserman Yuval Domniz Eyal Cohen Oz Franco Tzahi Sela Gur Munzer David Varssano 《Canadian journal of ophthalmology. Journal canadien d'ophtalmologie》2018,53(5):523-528
Objective
To report the outcomes and complications of combined photorefractive keratectomy (PRK) and collagen crosslinking (CXL).Design
A retrospective cohort study of consecutive patients undergoing combined PRK-CXL between 2011 and 2013 at Care Laser, Inc, Tel Aviv, Israel.Participants
Ninety-eight eyes of 56 patients were included. Only patients without keratoconus were included.Methods
Data were collected from the patients’ files and imaging devices. Main outcome measures were corrected and uncorrected distance visual acuity (CDVA/UDVA); spherical equivalent (SE); refractive, keratometric, and pachymetric stability; and the occurrence of postoperative complications.Results
Mean age was 27.69 ± 6.6 years. UDVA improved from 1.38 ± 0.60 to 0.15 ± 0.24 logMAR (p < 0.001). SE improved from ?4.45 ± 2.87 diopter (D) to +0.20 ± 0.90 D (p < 0.001), and 69% of the patients were within ±0.50 D from emmetropia. Four eyes had significant corneal haze; of them 3 eyes lost more than 2 Snellen lines. No cases of corneal ectasia were recorded.Conclusions
In our cohort PRK-CXL achieved significantly improved UDVA and SE compared to baseline. Corneal haze was a significant complication. Refractive results were less accurate than published for patients undergoing PRK procedures. Although no cases of corneal ectasia were seen, given the rarity of such complication, the added benefit of CXL remains to be proven. 相似文献15.
Ezekiel Weis Avi Rubinov Ahmed Rustom Al-Ghoul Farrah Meng-kay Yau 《Canadian journal of ophthalmology. Journal canadien d'ophtalmologie》2018,53(1):24-29
Objective
To report our center’s experience in treating neurotrophic keratitis (NK) through corneal neurotization using nerve transfers and sural nerve grafts in the adult population.Design
Prospective observational case series, single center study.Methods
Six consecutive patients (5 males and 1 female) with severe NK were evaluated. All patients had complete corneal anaesthesia in the neurotrophic eye. Three patients had unstable epithelial disease with recurrent breakdowns despite maximal medical and standard surgical management; three presented with dense scarring of their cornea. These patients were surgically treated using nerve transfers and sural nerve grafts for neurotization of the neurotrophic eye. Subjects were evaluated for corneal sensation, epithelial breakdown, and visual acuity.Results
Mean participant age was 57 years (SD 19) with a mean denervation time before the procedure of 23 months (SD 20). Patients were followed up for a minimum of 6 months following the procedure, with a mean follow up time 12 months (SD 4.2). All patients had improved corneal sensation within half a year following the procedure. Five patients (83%) demonstrated improved visual acuity. Of these patients, three (50%) had improved visual acuity with no further surgical intervention. One patient underwent cataract extraction 13 months after neurotization and another underwent amniotic membrane grafting 17 months after neurotization.Conclusions
Our experience suggests that corneal neurotization using nerve transfers and sural nerve grafts for patients suffering from deteriorating neurotrophic keratitis is a safe procedure in adults. It successfully restored corneal sensation in all patients and improved visual acuity in most patients. 相似文献16.
17.
Youssef Rayess Nicolas Arej Youssef Abdel Massih Joelle Antoun Naji Waked 《Canadian journal of ophthalmology. Journal canadien d'ophtalmologie》2018,53(2):135-138
Objective
Corneal warpage represents a reversible distortion of the corneal surface induced by soft contact lens (SCL) wear. The aim of the study is to assess the influence of SCL materials, age, wearing duration, cylindrical refraction, and spherical equivalence on the prevalence and time to resolution of corneal warpage.Methods
This is an interventional prospective study in which SCL wearers volunteered to remove their SCLs and underwent, on each visit, a corrected distance visual acuity and anterior and posterior segment evaluation, along with keratometry measurement and corneal topography. Visits were scheduled 30 minutes after SCL removal, on day 4, day 7, and then weekly after SCL removal until warpage resolution.Results
A total of 17 volunteers (34 eyes) were included, with 9 (18 eyes) in the hydrogel SCL group and 8 (16 eyes) in the silicone hydrogel SCL group. The difference in warpage prevalence between the hydrogel group (28%, 5 eyes) and silicone hydrogel group (31%, 5 eyes) was not statistically significant (p > 0.90). Duration necessary for warpage resolution ranged from 7 to 21 days with no statistically significant difference between the 2 groups (p = 0.12).Conclusions
Both types of SCL had similar corneal warpage prevalence and time to resolution, with slightly longer mean time to resolution with silicone hydrogel. All eyes had resolution of warpage by 3 weeks. It seems more cautious to wait longer than the usual 1-week interval before performing refractive surgery, especially in patients wearing SCL for long periods and regardless of the type of material. 相似文献18.
Howard V. Gimbel Bronson M. LeClair Brice Jabo Hala Marzouk 《Canadian journal of ophthalmology. Journal canadien d'ophtalmologie》2018,53(5):518-522
Objective
Although the literature on the implantable Collamer lens (ICL) suggests an increasing rate of anterior subcapsular cataract (ASC) development with increasing age and decreasing anterior chamber depth (ACD), the exact correlation is not known. We performed a retrospective observation study of 1653 eyes and calculated the incidence of ICL removal with cataract extraction and intraocular lens placement (CE-IOL) as a result of ASC, in correlation to patient’s age and ACD.Design
Retrospective observation study.Setting
The Gimbel Eye Centre, Calgary, Alberta, Canada.Methods
We analyzed ICL V4 model (Visian ICL; STAAR Surgical, Monrovia, CA) implanted in 1653 eyes with myopia from 2000 to 2012 at the Gimbel Eye Centre, Calgary. Myopic patients aged 19 years and older with no history of cataracts were included. The rate of ICL removal with cataract extraction was calculated. Parameters such as age, sex, refractive sphere, refractive cylinder, length of follow-up, and ACD were collected. Cataract-free survival with comparison of FDA and non-FDA cohorts was conducted using Kaplan–Meier survival curves with the log-rank test. In addition, covariates adjusted hazards ratios and 95% confidence intervals were calculated using Cox regression.Results
Of the 1653 eyes included in this study, a total of 46 eyes underwent ICL removal with CE-IOL. The length of follow-up varied between 2 and 14 years.Conclusions
This retrospective study demonstrated that the rate of developing ASCs positively correlated with age and negatively correlated with ACD. 相似文献19.
Steven Lapere Ezekiel Weis 《Canadian journal of ophthalmology. Journal canadien d'ophtalmologie》2018,53(5):471-473
Objective
To investigate the validity and safety of tele-ophthalmology evaluations as a clinical assessment tool when performed by an ophthalmologist to detect lesion growth in patients with low-, medium-, and high-risk choroidal and iris nevi.Design
Retrospective observational pilot study.Methods
Consecutive patients with low-/medium-/high-risk choroidal or iris nevi who underwent tele-oncology examinations over 5 months. All patients had a dilated fundus or anterior segment photography, A- and B-scan ultrasonography or ultrasound biomicroscopy (UBM), and spectral domain optical coherence tomography (SD-OCT) depending on the nature of their lesion. Patients who followed up with in-person examinations had an additional ophthalmoscopic examination.Results
Seventy-one eyes of 71 patients were included. The diagnoses were 47 low-risk choroidal nevi, 10 medium-risk choroidal nevi, 5 high-risk choroidal nevi, and 9 iris nevi. The tele-ophthalmology examinations found a sensitivity of 100%, specificity of 92%, positive predictive value of 57%, and negative predictive value of 100% to detect growth of a lesion.Conclusions
Tele-ophthalmology assessment for choroidal and iris nevi is a sensitive clinical tool to evaluate growth with 100% sensitivity and negative predictive value when performed by trained ultrasound technicians and reviewed by an ophthalmologist with expertise in ocular oncology. It has the potential to alleviate patient- and physician-related treatment burden. 相似文献20.
Priya Narang Amar Agarwal 《Canadian journal of ophthalmology. Journal canadien d'ophtalmologie》2018,53(5):503-509