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Corneal biomechanical properties in different ocular conditions and new measure...

Several refractive and therapeutic treatments as well as several ocular or systemic diseases might induce changes in the mechanical resistance of the cornea. Furthermore, intraocular pressure measurement, one of the most used clinical tools, is also highly dependent on this characteristic. Corneal biomechanical properties can be measured now in the clinical setting with different instruments. In the present wor...

“Mix and match” vs adaptação multifocal simétrica com lentes hidrofílicas multi...

Publicado em "Abstract book CIOCV 2014"

Crescimento do olho em crianças dos 6 aos 9 anos

Aberrações de frente de onda durante ortoqueratologia

Publicado em "Abstract book CIOCV 2014"

Clinical performance and “ex vivo” dehydration of silicone hydrogel contact len...

PURPOSE: To compare the performance of two novel multipurpose disinfecting solutions (MPDS) in preventing silicone hydrogel contact lens dehydration, provide higher scores of subjective comfort and stable optical quality during a month of lens wear in neophyte volunteers. METHOD: This is a prospective, double-blind, contralateral and randomised study involving the contra lateral use of Complete RevitaLens(®) a...

Oxygen and ionic transport in hydrogel and silicone-hydrogel contact lens mater...

The transport of oxygen, water and naked ions of Na+ and Cl− across two kind of hydrogels materials, made of a conventional hydrogel (Hy) based on hydroxyethyl methacrylate (pHEMA) and a silicone hydrogel (Si-Hy) material containing siloxane moieties, was compared between Molecular Dynamics Simulations (MDS) and experimental measurements. Computer-assisted simulations were carried out for wet hydrogels at 310 K...

In vitro and in vivo delivery of the secretagogue diadenosine tetraphosphate fr...

Purpose: To evaluate the possible use of soft contact lenses (CL) to improve the secretagogue role of diadenosine tetraphosphate (Ap4A) promoting tear secretion. Methods: Two conventional hydrogel CL (Omafilcon A and Ocufilcon D) and two silicone hydrogel (SiH) CL (Comfilcon A and Balafilcon A) were used. Ap4A was loaded into the lenses by soaking in a 1 mM Ap4A solution during 12 h. In vitro experiments were p...

Quality of vision with spectacles, special silicone hydrogel and gas permeable ...

Purpose: To evaluate optical quality and visual function in keratoconus patients corrected with RGP contact lenses and a novel special design of silicone hydrogel contact lens. Materials and methods: Twelve eyes of six patients with keratoconus were enrolled to experience a new soft contact lens (Soft-K) for keratoconus made of a silicone-hydrogel material and the outcomes were compared to the performance wit...

The TFOS international workshop on contact lens discomfort : report of the cont...

Intraocular pressure after implantation of the Vsian Implantable Collamer Lens ...

PURPOSE: To compare the intraocular pressure (IOP) values during a 3-month period after implantation of the new Visian Implantable Collamer Lens (ICL; STAAR Surgical Company, Nidau, Switzerland) V4c design with CentraFLOW technology without iridotomy using a standard procedure followed by implantation of the conventional ICL V4b model.