Background: To assess the refractive status of cataract patients with extreme myopia and to measure their accommodative capability after monofocal IOL implantation. Design: Prospective non-randomized study conducted at Tianjin Medical University Eye Centre. Participants: 18 patients with 34 extreme myopic eyes (≥-10 Diopter, ≥27mm axial length), and 14 patients with 27 non-myopic eyes that had ...

This paper studies the optimal linear pension scheme when society consists of rational and myopic individuals. Myopic individuals have, ex ante, a strong preference for the present even though, ex post, they would regret not to have saved enough. While rational and myopic persons share the same ex post intertemporal preferences, only the rational agents make their savings decisions according to...

AIM To determine the amount of myopic shift in children after cataract surgery with intraocular lens (IOL) implantation and to evaluate success in achieving the target refraction. METHODS The children were assigned into three groups depending on age at time of surgery: Group A, 0-1 years old; Group B, 1-7 years old; Group C, 7-18 years old. Multiple regression analysis was used to create a fo...

PURPOSE To examine ocular lens parameters and structural changes to elucidate mechanisms underlying the myopic shift and cataract-related changes that occur in some patients during hyperbaric oxygen (HBO) therapy. METHODS Scheimpflug images (Nidek EAS-1000) of the crystalline lens, measurements of scattered light, objective refraction, keratometry, tonometry, and axial length of the eye were ...

Background: To assess the occurrence and magnitude of refractive change in pseudophakic eyes undergoing pars plana vitrectomy without scleral buckling and to investigate possible aetiological factors. Methods: Retrospective case note review of pseudophakic eyes undergoing pars plana vitrectomy for a variety of vitreo-retinal conditions over a three-year period. Anterior chamber depth was measur...

BACKGROUND To assess the occurrence and magnitude of refractive change in pseudophakic eyes undergoing 20 gauge pars plana vitrectomy without scleral buckling and to investigate possible aetiological factors. METHODS Retrospective case note review of 87 pseudophakic eyes undergoing 20 gauge pars plana vitrectomy for a variety of vitreo-retinal conditions over a three-year period. Anterior cha...

Contrast sensitivity measured psychophysically at different levels of defocus can be used to evaluate the eye optics. Possible parameters of spherical and irregular aberrations, e.g. relative modulation transfer (RMT), myopic shift, and depth of focus, can be determined from these measurements. The present paper compares measured results of RMT, myopic shift, and depth of focus with the theoret...

PURPOSE To investigate the effect of watching 3-dimensional (3D) television (TV) on refractive error in children. METHODS Sixty healthy volunteers, aged 6 to 12 years, without any ocular abnormalities other than refractive error were recruited for this study. They watched 3D TV for 50 minutes at a viewing distance of 2.8 meters. The image disparity of the 3D contents was from -1 to 1 degree. ...