Corneoscleral contact lenses for visual rehabilitation after keratoplasty surgery.

Purpose: To report the use of corneoscleral lenses (CSL) in keratoconus patients who were unsatisfied with their visual outcomes after keratoplasty surgery.

Methods: Eleven consecutive cases with unsatisfactory vision with spectacles, due to irregular astigmatism, preferred to try CSL before SL due to handling or economic issues. An eye examination included refraction and visual acuity assessment, anterior eye biomicroscopy, ocular fundus examination, corneal topographic analysis, endothelial-cell count (ECC) and evaluation of corneal biomechanical parameters (corneal resistance factor, CRF; corneal hysteresis, CH; corneal-compensated intraocular pressure, IOPcc).

Fitting Scleral Lenses Less Than 15 mm in Diameter: A Review of the Literature.

Objective: To perform a comprehensive review of the current and historical scientific literature on fitting small scleral lenses (diameter <15 mm) and clarifying their advantages and disadvantages, in addition to their clinical applications.

Methods: The literature search was performed through PubMed from MEDLINE.

Results: Eleven studies of case series (258 eyes) were found.

Does Asymmetric Hearing Loss Affect the Ability to Understand in Noisy Environments?

Objectives: This study aimed to determine whether, in asymmetric hearing loss, the presence of an ear with a better or worse hearing threshold is related to either better or worse speech-in-noise (SiN) intelligibility.

Materials And Methods: A total of 618 subjects with different degrees of hearing loss were evaluated for their ability to understand SiN. A stepwise forward logistic regression analysis was performed to identify the factors that affect performance.

Impact of Corneoscleral Contact Lens Usage on Corneal Biomechanical Parameters in Keratoconic Eyes.

Objective: To analyze the changes in corneal biomechanical parameters of keratoconic eyes with and without intracorneal ring segment (ICRS) implants after 1 year of corneoscleral contact lens (CScL) wear.

Methods: Seventy-four eyes of 74 patients were divided into three groups: healthy subjects (29 eyes, control group), and 2 groups of subjects with keratoconic eyes (one group of 20 eyes with ICRS implants and one of 25 eyes without them), which were fitted with CScL. Corneal hysteresis (CH), corneal resistance factor (CRF), and corneal-compensated intraocular pressure (IOPcc) were evaluated before fitting CScL and after 1 year of CScL wear.

Visual quality with corneo-scleral contact lenses after intracorneal ring segment (ICRS) implantation for keratoconus management.

Purpose: To evaluate the visual quality results when fitting a corneo-scleral contact lens (CScL) after intracorneal ring segment (ICRS) implantation for keratoconus management.

Methods: Twenty-seven eyes of 27 patients with keratoconus underwent ICRS implantation and had CScL fitted as their visual quality was unsatisfactory with their spectacles or contact lenses. Patients received a complete eye examination, refraction and visual acuity assessment, anterior eye biomicroscopy, ocular fundus examination, corneal topographic analysis, endothelial-cell count, and visual quality assessment using contrast sensitivity and aberrometry tests.

Corneoscleral contact lenses fitting on irregular corneas after laser-assisted in situ keratomileusis.

Purpose: We aimed to describe the outcomes of corneoscleral contact lens fitting with multi-aspherical geometry designs in patients with irregular corneas after laser-assisted in situ keratomileusis (LASIK).

Methods: This was a retrospective series of 18 patients (age, 26-38 years) selected from an eye clinic database. Participants were required to have unsatisfactory visual acuity with their current contact lenses or spectacles after LASIK for myopia correction.

Symptomatic accommodative and binocular dysfunctions from the use of flat-panel displays.

Aim: To determine the presence of symptomatic accommodative and non-strabismic binocular dysfunctions (ABD) in a non-presbyopic population of video display unit (VDU) users with flat-panel displays.

Methods: One hundred and one VDU users, aged between 20 to 34y, initially participated in the study. This study excluded contact-lens wearers and subjects who had undergone refractive surgery or had any systemic or ocular disease.

Visual quality with corneo-scleral contact lenses for keratoconus management.

Purpose: To assess the visual quality achieved by fitting corneo-scleral contact lenses (CScL) for keratoconus management.

Methods: Thirty patients with keratoconus presented to have CScL fitted because of the unsatisfactory visual quality they experienced with their contact lenses or spectacles. The eye examination included visual acuity assessment, anterior eye biomicroscopy, ocular fundus examination, corneal topographic analysis, endothelial-cell count, contrast sensitivity and aberrometry.

Corneal Biomechanical Parameters With Corneoscleral Contact Lenses in Post-Laser In Situ Keratomileusis Eyes.

Objective: To evaluate corneal biomechanical parameters wearing corneoscleral contact lenses (CScL) in patients with irregular corneas after laser in situ keratomileusis (LASIK).

Methods: Data from patients fitted with CScL because of corneal surface irregularities after complicated LASIK surgery were selected by two eye clinics. Previously and after 1 year of CScL fitting, corneal hysteresis (CH), corneal resistance factor (CRF), corneal-compensated intraocular pressure (IOPcc), and central corneal thickness were evaluated.

Corneo-scleral contact lenses in an uncommon case of keratoconus with high hyperopia and astigmatism.

Purpose: To analyse the visual quality achieved by fitting corneo-scleral contact lenses (CScL) in an uncommon case of bilateral keratoconus, high hyperopia and astigmatism.

Methods: A 45-year-old man presented for eye examination due to the unsatisfactory quality of his vision wearing soft toric contact lenses. He presented high hyperopia and astigmatism with bilateral keratoconus.

Corneo-scleral contact lens in a piggyback system for keratoconus: A case report.

Purpose: We describe a case of fitting a corneo-scleral contact lens with a multi-aspheric geometry design (MAGD CScL) on top of a daily silicone hydrogel lens (piggyback system) for keratoconus management.

Methods: A 48-year-old man using soft toric contact lenses required an improvement in the unsatisfactory quality of his vision. He presented with bilateral asymmetric keratoconus with high myopia in the right eye (RE) and severe myopia in the left eye (LE).

Post-LASIK Visual Quality With a Corneoscleral Contact Lens to Treat Irregular Corneas.

Objective: To evaluate the visual quality results of fitting a corneoscleral contact lens with multiaspheric geometry design (MAGD CScL) in subjects with irregular corneas after laser-assisted in situ keratomileusis (LASIK) surgery.

Methods: From a database of patients evaluated for scleral contact lenses, we identified those with irregular corneas and visual problems after they underwent LASIK surgery for correcting myopia. They manifested unsatisfactory visual quality with their current contact lenses or glasses.

Synthesis of bicyclo[4.n.1]alkanones.

Cyclic beta-keto ester monoanions react with 1,4-dihalobutenes to give C-alkylated products which subsequently undergo a stereoselective SN2' O-alkylation reaction to yield functionalized enol ethers. When the starting material was ethyl cyclopentanone carboxylate, the C-alkylated product, treated with a base, directly afforded the functionalized bicyclo[4.2.

[Infantile facial paralysis: diagnostic and therapeutic features].

This paper deals with a series of 11 cases of peripheral unilateral facial paralyses affecting children under 15 years. Following parameters are reviewed: age, sex, side immobilized, origin, morbid antecedents, clinical and neurophysiological explorations (electroneurography through magnetic stimulation) and the evolutive course of the cases. These items are assembled in 3 sketches in the article.

[The blink reflex in the electrophysiologic exploration of Bell's palsy and its prognostic value].

Conventional electrophysiology of the facial nerve gives only information about the functional condition of its extracranial segment. The blink-reflex triggered for the electric stimulation of supraorbital nerve allows the study of the whole nerve path, even the intraosteal, where the great majority of its pathology settles. We have realized this tests in 43 Bell's palsy cases (at the beginning of the paralysis and three weeks later) and correlated the results with the clinic course, in order to set up the pronostic value of the procedure.

[Progression of profound perceptive deafness in children].

We have studied 340 cases of deep neurisensorial deafness in children and their evolution along a 7.2 years term. Conventional audiometry has been used as commonest method for assessing the auditive function.

[Tobacco addiction and current treatment methods].

Smoking currently is considered to be an addiction with severe medical and social effects. It has been implicated in some respiratory and extra-respiratory diseases. In spite of knowing its dangerous effects, many patients cannot stop smoking without outside help.

[Secretory middle ear otitis with severe sensorineural deafness].

Secretory middle ear otitis is of difficult assessment in children with severe hearing impairment. This otitis, very frequent in infants and children, influences negatively the auditive capacity and apprenticeship as well. Our study deals with the prevalence and severity of the secretive middle ear otitis in an scholar population handicapped by a heavy hypoacusia.

[Painful shoulder syndrome with drooping after cervical lymphatic dissection].

A study was made of 12 patients with head and neck cancer who underwent surgical neck dissection in 1993 to evaluate quantitatively the degree of postoperative shoulder dysfunction after surgical neck dissection. Nerve conduction studies were made of the accessory nerve and the range of motion, strength and position of the shoulder were evaluated. Patients were invited to complete a questionnaire about daily living activities, shoulder pain, shoulder movement and shoulder droop.

[Computerized tomography in the detection of metastatic cervical lymph nodes].

The accuracy of computed tomography (CT) in detecting cervical lymph node metastases was studied. Twenty patients with squamous carcinoma of the head and neck were selected. The results obtained by cervical palpation, CT and postoperative histological study were compared.

Young's syndrome: a further cause of chronic rhinosinusitis.

Three males--aged 32, 35, and 27 years--presented Young's syndrome: a combination of obstructive azoospermia and chronic sinopulmonary infection. The evaluation of nasal mucociliary transport using an isotopic technique revealed mucociliary stasis in one case and decreased clearance in the others (< 2 mm/min). Ciliary ultrastructure was normal in two patients, while the other showed mucous hyperplasia and low ciliary density which made correct ciliary evaluation not possible.

Invasive fungal sinusitis in immunosuppressed patients. Report of three cases.

Report of three cases. Newly appeared immunosuppression related conditions have led to an increase in morbidity of systemic opportunistic mycoses. Rhinosinusal infection has also increased in frequency.

[The morphological and morphometric study of the segment of the labyrinth of the fallopian canal].

The study of the Fallopian canal with bone specimens can offer an exact and valuable information on the morphology of this duct and its close relations with neighbouring structures. The aim of this paper is to give an actualized compilation of the updated know findings, regarding the morphology and the morphometry of the first segment of the Fallopian canal. The study is based on 92 human temporal bones coming from skulls of adult subjects of both sexes.

Hypoglossal nerve conduction study by transcranial magnetic stimulation in normal subjects.

The introduction of transcranial magnetic stimulation has allowed the study of conduction in the proximal portions and central pathways of the cranial nerves. A study is made of cranial nerve XII with transcranial magnetic stimulation at two levels, cortical and cisternal, registering the motor evoked potential by means of surface electrodes in contact with the upper face of the tongue. Motor evoked potentials were constantly observed on cortical stimulation, in a painless, easy, and reproducible way, with mean values of 10.

[Oncogenic activity of head and neck tumors].

Some types of malignant neoplasms are consequence of genetic changes. The starting of oncogenesis begins when some genetic alterations arises, or the genome acquires some peculiar and pathological traits owing to the action of physical, chemical or viral agents. These alterations set in motion an activatory phenomenon upon the proto-oncogene which is turned into an oncogene.