AIMS To study the effect and long-term sustainability of part-time occlusion therapy for anisometropic amblyopia after 8 years of age. METHODS A total of 41 anisometropic amblyopes aged > or =8 years were analysed. In six patients, best-corrected visual acuity (BCVA) of amblyopic eye improved more than two lines within 2 weeks of full-time spectacle wear. The remaining patients were assigned ...

Aims. Increasing evidence shows that imbalanced suppressive drive prior to binocular combination may be the key factor in amblyopia. We described a novel binocular approach, interocular shift of visual attention (ISVA), for treatment of amblyopia in adult patients. Methods. Visual stimuli were presented anaglyphically on a computer screen. A square target resembling Landolt C had 2 openings, on...

Perceptual learning is considered a potential treatment for amblyopia even in adult patients who have progressed beyond the critical period of visual development because adult amblyopes retain sufficient visual plasticity. When perceptual learning is performed with the correction of high-order aberrations (HOAs), a greater degree of neural plasticity is present in normal adults and those with h...

C often encounter a situation where residual impairment in vision continue to persist despite adequate and timely treatment (full time, full spectacle correction and/or patching) of children with (ISO) ametropic or anisometropic amblyopia. A repeat evaluation of the optical media, retina and rest of the visual pathway may or may not reveal a previously unrecognised pathology. Not infrequently h...

Background: Gold standard penalization therapies for amblyopia are thankfully being challenged by new techniques and new technologies. One such technology, rapid alternate occlusion or alternating flicker was recently studied and improved visual acuity and stereopsis in anisometropic amblyopes. Methods: Starting with a recapitulation of the Eyetronix Flicker Glass Clinical Study of the affect o...

Spatial localization was investigated for each eye of amblyopic observers using a bisection paradigm. The stimuli were comprised of a grating composed of bright lines, and a test line. The test line was either placed above the grating (bisection-no overlap) or within the row of lines comprising the grating (bisection-with overlap) and thresholds for each bisection task were measured as a functi...

PURPOSE To use highly precise spectral-domain optical coherence tomography (SD-OCT) to determine whether there were structural abnormalities in the layers of different regions of the fovea in children with anisometropic amblyopia. METHODS Eighteen children (mean age 7.8 years old; range 5-11 years) with unilateral anisometropic amblyopia and 18 age-matched control subjects participated. Fovea...

Maximum motion displacement (Dmax) is the largest dot displacement in a random-dot kinematogram (RDK) at which direction of motion can be correctly discriminated [Braddick, O. (1974). A short-range process in apparent motion. Vision Research, 14, 519-527]. For first-order RDKs, Dmax gets larger as dot size increases and/or dot density decreases. It has been suggested that this increase in Dmax ...

BACKGROUND Brain plasticity exists beyond the critical period in children aged 9-17 years and in adults, and can result in vision restitution following more intense amblyopia treatments. Telescopic magnification provides a clearer image and better visual stimulation and hence promotes brain plasticity. The purpose of this study was to investigate the impact of vision therapy with telescopic mag...

BACKGROUND & OBJECTIVE Amblyopia is one of the most common causes of visual impairment in adults and children, and visual loss may be permanent if not treated in time. Though many studies have been done on occlusion therapy which is the mainstay in the treatment of unilateral amblyopia, discrepancies exist in literature about quantification of treatment and follow up measures. The present study...