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The endometrial pattern and thickness were analysed by ultrasonography in 139 cycles stimulated for in-vitro fertilization (IVF) on the day of administration of human chorionic gonadotrophin (HCG). A semi-programmed schedule based on the pill + clomiphene citrate + human menopausal gonadotrophin (HMG) was used in all cycles. On the day of HCG(More)
OBJECTIVE To measure the corneal power after myopic laser in situ keratomileusis (LASIK). METHODS Six central areas in 6 corneal power maps were studied using the Orbscan II statistical analysis device in 26 eyes that underwent myopic LASIK. Refractive and corneal power changes were compared. Factors related to wrong corneal power measurement were(More)
Bare bones particle swarm optimization (BBPSO) is a swarm algorithm that has shown potential for solving single-objective unconstrained optimization problems over continuous search spaces. However, it suffers of the premature convergence problem that means it may get trapped into a local optimum when solving multimodal problems. In order to address this(More)
Relatively few investigations of anaerobic bacteria as ocular flora have been conducted, and their results have been contradictory. The conjunctival sacs of 22 normal subjects and of 14 patients with acquired immunodeficiency syndrome, and 22 anophthalmic sockets were cultured for anaerobic bacteria Thirty-four (77.3%) of the 44 eyes of normal subjects(More)
A variation of the femtosecond laser-assisted sutureless anterior lamellar keratoplasty technique using a femtosecond laser incision for surgical management of anterior corneal disease is described. Six patients with corneal scars were treated with the laser to create a horizontal lamellar bed interface in the cornea of the donor and recipient eyes, with a(More)
PURPOSE Intrastromal Ferrara ring segments were inserted in eyes with severe keratoconus to evaluate safety and efficacy of this procedure. METHODS Intrastromal Ferrara ring segments were placed in 36 eyes of 35 patients with severe keratoconus, who were evaluated after 12 months of follow-up. All patients had highly disabling visual acuity, contact lens(More)
Corneal anesthesia or hypesthesia can complicate refractive surgical procedures such as epikeratophakia and radial keratotomy. An esthesiometer was used to measure the corneal sensitivity in unoperated-on corneas and fellow corneas after excimer laser photorefractive keratectomy. Decrease in corneal sensitivity was noted within six postoperative weeks, with(More)
OBJECTIVE We investigated early mediators of inflammation following excimer laser ablation in a rabbit cornea model. The ability of topical anti-inflammatory agents to influence these responses was also examined. METHODS Adult New Zealand white rabbits were subjected to photorefractive keratectomy with a 193-nm argon fluoride excimer laser. Prostaglandin(More)
We performed cylindric corneal ablations with the excimer laser on 12 patients to correct severe, disabling astigmatism after keratoplasty. In some patients, an additional ablation was performed to correct myopia. Patients were followed up for an average of eight months (range, six to 14 months). Uncorrected visual acuity improved in nine patients, and nine(More)
We performed phototherapeutic keratectomy with a 193-nm excimer laser on 18 sighted patients (18 eyes) to treat corneal opacities. The corneal opacities were caused by corneal dystrophies in five patients; corneal scars secondary to corneal ulcers in six patients; corneal scar secondary to trauma in four patients; and band keratopathy, atopy, or corneal(More)