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Preoperative Visual Acuity (preoperative + visual_acuity)
Selected AbstractsVitrectomy without postoperative posturing for idiopathic macular holesCLINICAL & EXPERIMENTAL OPHTHALMOLOGY, Issue 5 2007Adrian Rubinstein MRCSEd Abstract Purpose:, To determine the success of vitrectomy with ILM peeling and C3F8 tamponade for macular holes without the need for postoperative face-down posturing. Methods:, Twenty-four eyes of 24 consecutive patients undergoing pars plana vitrectomy with indocyanine green-assisted ILM peeling and C3F8 tamponade without prone posturing were included in the study. All patients had follow up on 1 day, 2 weeks and 3 months postoperatively. Biomicroscopy and optical coherence tomography were used to assess macular hole closure at 3 months postoperatively. Snellen visual acuity was compared pre- and postoperatively. Results:, Of the 24 eyes recruited, two (8%) had stage II, 17 (71%) had stage III and five (21%) had stage IV macular holes. Nineteen (79%) eyes were phakic and five (21%) eyes were pseudophakic at the time of surgery. The macular holes had been present for an average of 7.5 months (range 3,18 months). At 3-month follow up, 22/24 (91.6%) holes were closed. Both of the two holes that failed to close were stage IV macular holes. Preoperative visual acuity ranged from 6/18 to 6/60 (mean 6/36). Postoperative visual acuity ranged from 6/9 to 6/60 (mean 6/18). Eighteen eyes had improvement of visual acuity of at least one line on the Snellen chart, six eyes had no improvement. No eyes had worse vision postoperatively. Conclusion:, Macular hole surgery without face-down posturing provides anatomical and functional results comparable to those with prone posturing. Combined phacovitrectomy is not essential to avoid prone posturing. [source] Phacoemulsification in vitrectomized eyes: results using a ,phaco chop' techniqueACTA OPHTHALMOLOGICA, Issue 4 2009Nishant Sachdev Abstract. Purpose:, To evaluate the intraoperative and early postoperative complications of phacoemulsification using a ,phaco chop' technique in previously vitrectomized eyes. Methods:, A prospective interventional case series. Seventy-five previously vitrectomized eyes of 73 consecutive patients underwent phacoemulsification using a ,phaco chop' technique via clear corneal incision. Patients were observed for any intraoperative or early postoperative complications. Results:, Fifty-four eyes (72%) had predominant nuclear sclerosis or posterior subcapsular cataract. The intraoperative findings included intraoperative miosis [seen in 21 eyes (28%)] and posterior capsule plaques [in 15 eyes (20%)]. No other significant intraoperative complication (posterior capsule rupture, zonular lysis or dropped nuclei) was observed. In the early postoperative period, one patient had massive serous choroidal detachment, which resolved with conservative treatment. Mean preoperative visual acuity (LogMar scale) was 0.74, which improved to 0.36 postoperatively (p < 0.001). Conclusion:, Phacoemulsification using a ,phaco chop' technique is a safe procedure in vitrectomized eyes. [source] Subjective visual sensations during cataract surgery performed under topical anaesthesiaACTA OPHTHALMOLOGICA, Issue 8 2008Zsolt Biró Abstract. Purpose:, To examine the patient's subjective visual sensations during cataract surgery performed under topical anaesthesia. Methods:, Prospective, non-randomized, cohort study. One hundred and thirty-two patients were interviewed by standard questionnaire within 1 hr of uncomplicated cataract surgery performed under topical anaesthesia. Results:, Everyone saw lights of different and changing intensity. One hundred and twenty-six (95.5%) patients saw different colours; 18 (13.6%) patients saw a rainbow-like scale of colours. Ninety-eight (74.2%) patients could see clear shapes and forms (mainly circle, square, rectangle, ellipse). Forty-nine (37.1%) patients could see instruments, and 35 (26.5%) patients saw the fingers of the surgeon during surgery. Twenty-six patients (19.7%) considered the strong light of the microscope very disturbing and uncomfortable. Forty-seven patients made drawings of the visual sensations that they experienced during surgery. Conclusion:, Consistent with our review of the literature, we found no relation between intraoperative visual sensations and patient's age, sex, preoperative visual acuity, duration of surgery or cataract severity. We found that it is helpful to inform the cataract patients of potential visual sensations before their surgery. [source] Densiron intraocular tamponade: a case seriesCLINICAL & EXPERIMENTAL OPHTHALMOLOGY, Issue 3 2008Beng Liam Lim MBBS(Hons) MPH Abstract Purpose:, To report on the use of Densiron (heavy silicone oil), a new endotamponade agent with proposed benefits in complex retinal detachments involving inferior proliferative vitreoretinopathy. Method:, Retrospective case note review. Results:, Ten cases (10 eyes) in which Densiron was used in eyes which had failed initial retinal detachment surgery. The overall success rate of long-term total reattachment was 70%. Mean preoperative visual acuity was logMAR 2.03 (SD 0.406), which improved to a mean postoperative visual acuity of logMAR 1.00 (SD 0.571) (P = 0.001). Conclusion:, Densiron was well tolerated with few side-effects and appears to be a useful agent in patients with inferior proliferative vitreoretinopathy. [source] Visual outcomes following vitrectomy and peeling of epiretinal membraneCLINICAL & EXPERIMENTAL OPHTHALMOLOGY, Issue 4 2005James G Wong MMed Abstract Background:, Visual outcomes of patients following vitrectomy and peeling of visually significant epiretinal membranes were assessed to determine the influence of specific perioperative factors and surgical complications on final visual acuity and functional vision. Methods:, In an unmatched, consecutive surgical series, vitrectomy and membrane peeling were performed on 125 eyes of 123 patients with visually significant macular epiretinal membranes. Patients were followed for 6,36 months. Visual outcome measures included postoperative logMAR visual acuity, change in visual acuity and functional vision tasks evaluated by questionnaire. Perioperative factors including duration of symptoms, preoperative visual acuity, aetiology, membrane type and leakage on fundal fluorescein angiogram were correlated with final visual outcomes. Results:, Visual acuity improved by a mean of 0.31 ± 0.21 units (three lines of vision). In 104 cases (83%), visual acuity improved in patients by two lines or more, with 20 cases (16%) having unchanged acuity and one case (1%) having worse acuity. Ninety-three per cent of interviewed cases reported improvement in functional vision, especially reduction of distortion. Cataract was observed in 52 cases (52% of phakic eyes) postoperatively compared with 19 cases (19%) preoperatively. Postoperative visual acuity correlated with preoperative visual acuity. Patients with worse preoperative vision recorded greater visual improvement following surgery. No other perioperative factors were found to have a prognostic value in this study. Conclusion:, Epiretinal membrane peeling improves vision in the majority of patients with significant symptoms, even if preoperative visual acuity is not substantially reduced. Surgery improves functional vision including metamorphopsia not measurable by visual acuity, and thus assessment of functional vision should be included in surgical case planning. [source] The macular hole: report of an Australian surgical series and meta-analysis of the literatureCLINICAL & EXPERIMENTAL OPHTHALMOLOGY, Issue 4 2000H K Kang MB BS ABSTRACT Purpose: To report an Australian series of macular hole surgery by pars plana vitrectomy and fluid-gas exchange, and to identify factors influencing the outcome of the surgery through meta-analysis of the literature. Methods: Fifty-six consecutive cases of macular hole were treated by pars plana vitrectomy, fluid-gas exchange and face-down positioning for at least 7 days, and prospectively followed for 3,12 months. Thirty-six reports of macular hole surgery were reviewed. A meta-analysis on the pre- and postoperative parameters was performed on 389 cases, in which case-specific data-points were available. Results: In the current series, anatomical closure was achieved in all (100%) of 16 stage 2, and in 35 (87.5%) of 40 stage 3 or 4 macular holes. At least 2 logMAR lines of improvement in visual acuity were seen in 10 (62.5%) stage 2 and 20 (50.0%) stage 3 or 4 holes. Postoperative visual acuity was 6/12 or better in 10 (62.5%) stage 2 and 17 (42.5%) stage 3 or 4 holes. In both the current series and the meta-analysis, favourable surgical outcomes were associated with stage 2 macular holes, better preoperative visual acuity, and shorter preoperative duration. Adjuvant use was associated with a higher rate of anatomical closure but there was no clear benefit in terms of postoperative visual acuity. Conclusion: Our experience and the results of the meta-analysis suggest that macular hole surgery should be offered as early as possible once full-thickness neuroretinal defect occurs. [source] | ||||||||||