The effects of blurred visual inputs with different levels on the cerebral activity during free level walking.

Objective: The aim of this study was to evaluate the effects of blurred vision on electrocortical activities at different levels during walking.

Materials And Methods: A total of 22 healthy volunteers (all men; mean age: 24.4 ± 3.

Effects of visual restoration on gait performance and kinematics of lower extremities in patients with age-related cataract.

Background: Visual inputs are critical for locomotor navigation and sensorimotor integration in the elderly; however, the mechanism needs to be explored intensively. The present study assessed the gait pattern after cataract surgery to investigate the effects of visual restoration on locomotion.

Methods: The prospective study recruited 32 patients (70.

The impact of age-related cataracts on colour perception, postoperative recovery and related spectra derived from test of hue perception.

Background: Cataract patients were always excluded from studies on ageing of colour vision; thus, effect of age-related cataracts on deterioration of colour perception has not been analysed. In present study, impacts of age-related cataracts on colour discrimination, postoperative recovery and related spectra were investigated.

Methods: In this cohort study, thirty age-related cataract patients scheduled for binocular surgery and 30 elderly volunteers were enrolled.

Significant improvement in dynamic visual acuity after cataract surgery: a promising potential parameter for functional vision.

Purpose: Dynamic visual acuity (DVA) is a relatively independent parameter for evaluating the ability to distinguish details of a moving target. The present study has been designed to discuss the extent to which age-related cataract impacts DVA in elderly individuals and to determine whether it could be restored after bilateral phacoemulsification combined with intraocular lens implantation surgery.

Methods: Twenty-six elderly cataract patients scheduled for binocular cataract surgery and 30 elderly volunteers without cataract were enrolled in the study.

[Changes of dynamic visual acuity after phacoemulsification combined with intraocular lens implantation].

Objective: To compare the spatial resolutions of dynamic optotypes at different speed levels among age-related cataract patients, older people with clear crystalline lenses and senile individuals implanted with intraocular lenses (IOL).

Methods: The control study recruited 24 patients (48 eyes) with age-related cataract scheduled for phacoemulsification surgery in our hospital between Jul. 2011 and Dec.

Punctal plugs versus artificial tears for treating primary Sjögren's syndrome with keratoconjunctivitis SICCA: a comparative observation of their effects on visual function.

To compare the effects of treatment with punctal plugs versus artificial tears on visual function for primary Sjögren's syndrome with dry eye. Forty-two eyes of 42 patients with primary Sjögren's syndrome were enrolled and were allocated randomly into artificial tears (AT) group and punctal plugs (PP) group. Ocular Surface Disease Index (OSDI) was used, and fluorescent staining for tear film break-up time (BUT), the Schirmer test I (STI) and contrast sensitivity was performed before treatment and was repeated 3 months after treatment.

Punctal plugs versus artificial tears for treating dry eye: a comparative observation of their effects on contrast sensitivity.

This study aimed to compare the effects of treatment with punctal plugs versus artificial tears on visual function and tear film stability for dry eye. A total of 56 consecutive eyes of 28 dry eye patients observed at our clinic from May to October in 2009 were divided into two groups. One group (32 eyes of 16 patients) was treated with artificial tears, and punctal plugs were used in the other group (24 eyes of 12 patients).

Combination of retinal pigment epithelium cell-conditioned medium and photoreceptor outer segments stimulate mesenchymal stem cell differentiation toward a functional retinal pigment epithelium cell phenotype.

Recent studies have suggested that bone marrow-derived mesenchymal stem cells (BMMSCs) are capable of retinal tissue-specific differentiation but not retinal pigment epithelium (RPE) cell-specific differentiation. Photoreceptor outer segments (POS) contribute to RPE development and maturation. However, there has been no standard culture system that fosters the differentiation of BMMSCs into mature RPE cells in vitro.

Color discrimination by patients with different types of light-filtering intraocular lenses.

Purpose: To evaluate photopic and mesopic color discrimination in patients with different types of light-filtering intraocular lenses (IOLs).

Setting: Peking University Third Hospital, Peking University Eye Center, Beijing, China.

Methods: Cataract patients with different types of IOLs were enrolled 3 months postoperatively.