Evaluation of visual plasticity in patients with refractive amblyopia treated using a visual perceptual learning system.

Background: Amblyopia is a neurological deficit in binocular vision that affects 3% of the population and is the result of disruptions in early visual development.

Objective: In this study, we used a visual perceptual learning system for the short-term treatment of children with ametropic amblyopia and evaluated the clinical efficacy of this system in terms of visual plasticity.

Methods: We conducted a retrospective analysis of the clinical data of 114 children (228 eyes) with refractive amblyopia, who were aged 6.

Application of piggy-back lens in the correction of severe keratoconus: A case study.

Objective: This is a case study on the application of a piggy-back lens in the correction of severe keratoconus.

Methods: From the results of general eye examination, refractive state examination, and corneal morphology examination on the patient, it was determined that corneal protrusion and deformation of the right eye were obvious. The right eye was corrected using a piggy-back lens and the left eye with a rigid gas-permeable contact lens (RGPCL) alone.

The Modulation of Laser Refractive Surgery on Sensory Eye Dominance of Anisometropia.

Purpose: To evaluate the effect of laser refractive surgery on sensory eye dominance of anisometropia.

Methods: A total of 156 subjects with nonanisometropic myopia and 70 subjects with anisometropic myopia were enrolled in the first part of the study. The dichoptic motion coherence threshold technique was applied to collect the normal dataset and distribution of sensory eye dominance.

The effects of monocular training on binocular functions in anisometropic amblyopia.

Intensive monocular perceptual learning can improve visual acuity, contrast sensitivity, and vernier acuity in the amblyopic eye in adults with amblyopia. It is however not clear how much monocular training can enhance binocular visual functions. In the current study, we aimed to evaluate effects of monocular training on a variety of binocular functions.