Publications by authors named "Yaohua Sheng"
Purpose: To retrospectively assess the effectiveness of combined phacoemulsification with viscogoniosynechialysis for patients with different subtypes of primary angle closure (PAC).
Methods: Forty-three eyes of 37 patients diagnosed with PAC (12 eyes), PAC with glaucoma (PACG, 20 eyes), and acute PAC (11 eyes) were treated with phacoemulsification and viscogoniosynechialysis between November 2010 and October 2012. Main outcome measures were anterior chamber depth (ACD), intraocular pressure (IOP), the number of IOP-lowering medication, extent of peripheral anterior synechia (PAS), and visual acuity preoperatively and one month postoperatively.
Step-by-step phacoemulsification training program for ophthalmology residents.
Indian J Ophthalmol
November 2013
Aims: The aim was to analyze the learning curve of phacoemulsification (phaco) performed by residents without experience in performing extra-capsular cataract extraction (ECCE) in a step-by-step training program (SBSTP).
Materials And Methods: Consecutive surgical records of phaco performed from March 2009 to Sept 2011 by four residents without previous ECCE experience were retrospectively reviewed. The completion rate of the first 30 procedures by each resident was calculated.
Background: A noninferiority trial was conducted to evaluate the efficacy of a single evening dose of fixed-combination latanoprost 50 μg/mL and timolol 0.5 mg/mL (Xalacom®; LTFC), in Chinese patients with primary open-angle glaucoma (POAG) or ocular hypertension (OH) who were insufficiently controlled on β-blocker monotherapy or β-blocker-based dual therapy.
Methods: This 8-week, randomized, open-label, parallel-group, noninferiority study compared once-daily evening dosing of LTFC with the unfixed combination of latanoprost, one drop in the evening, and timolol, one drop in the morning (LTuFC).
[The accuracy of posterior curvature method in corneal power calculation after LASIK surgery].
Zhonghua Yan Ke Za Zhi
October 2009
Objective: To estimate the accuracy of posterior curvature method in corneal power calculation after LASIK surgery.
Methods: Corneal power calculation in 11 eyes that underwent Intraocular Lens (IOL) implantation after LASIK surgery (10 cases of Phaco + IOL, 1 case of IOL displacement), all of which used posterior curvature method, was analyzed retrospectively. The differences between post-operative stable refraction and target refraction were calculated, the actual corneal powers were deduced, and the expected refractive errors using other corneal power evaluation methods (auto-keratometry, corneal topography, spherical equivalent method, anterior curvature method, Equivalent K Reading method provided by Pentacam) were analyzed.
Aim: To evaluate the accuracy of a practical method (the Actual K(a+p) method) of corneal power measurement for post-LASIK eyes undergoing cataract surgery.
Methods: Ten eyes of 7 patients (4 male, 3 female, average age 50.10±4.
Purpose: To determine the effect of triple drug immune suppression on RPE xenograft survival in the fetal pig after transplantation into the albino rabbit subretinal space.
Methods: Primary RPE microaggregates (approximately 40,000 RPE cells) were injected into the subretinal space of 24 albino rabbits, with half the rabbits maintained on triple systemic immune suppression. RPE survival was estimated with a DNA probe (porcine DNA repeat element; PRE) against a porcine-specific repetitive chromosomal marker or a RAM-11 antibody against rabbit macrophages.
Purpose: To demonstrate the ability of a novel chromosomal marker to identify retinal pigment epithelium (RPE) after xenotransplantation, and determine the short-term correlation between pigment and this nuclear marker.
Methods: Primary pigmented RPE harvested from third trimester fetal pigs were transplanted as microaggregates into the subretinal space of 3 albino rabbits. We then used an in situ probe for a repetitive segment of the porcine chromosome to identify the transplanted RPE.