Phacoemulsification with vitreous loss using phacoemulsifier and vitrector concurrently: bimanual-bipedal technique.

Vitreous loss is one of the adverse complications that can occur during phacoemulsification. Once vitreous loss is identified, procedural guidelines advise that phacoemulsification be ceased and the probe carefully withdrawn to minimize traction on the vitreous. Bimanual-bipedal technique described in this study holds the phacoemulsification probe in place and inserts the vitrectomy cutter through the pars plana port with the other hand.

Effect of low-addition soft contact lenses with decentered optical design on myopia progression in children: a pilot study.

Purpose: To investigate the effect of low-addition soft contact lenses (CLs) with decentered optical design on the progression of myopia in children in a pilot study.

Subjects And Methods: Twenty-four Japanese children age 10-16 years with baseline myopia of -0.75 to -3.

Optical quality of the eye degraded by time-varying wavefront aberrations with tear film dynamics.

Purpose: Wavefront aberrations (WFAs) of the eye vary with time because of the tear film dynamics. We investigated, using a simulation method, the variation of optical quality with time-varying wavefront measurements of 13 eyes with different refractions.

Methods: WFAs of 13 normal eyes of 13 subjects were measured every second for 10 s.

Effects of reference axes used during measurements of ocular and corneal higher-order aberrations in patients following LASIK.

Purpose: To determine the effects of the reference axes used during the measurements of ocular and corneal higher-order aberrations (HOAs) in patients before and after laser in situ keratomileusis (LASIK).

Methods: Wavefront sensing and corneal topography were determined for 29 eyes of 15 patients before and after LASIK. Ocular and corneal HOAs were calculated for 4-mm- and 6-mm-diameter pupils with the instrument aligned with the line of sight (LOS) or with the vertex normal (VN).

Serial measurements of higher-order aberrations after blinking in normal subjects.

Purpose: To investigate sequential changes in the optical quality of normal eyes associated with blinking.

Methods: Ocular higher-order aberrations (HOAs) were measured sequentially by using a wavefront sensor for 30 seconds in 20 eyes of 20 normal subjects. During the measurement, subjects were forced to blink every 10 seconds.

Paradoxical increase of visual impairment with punctal occlusion in a patient with mild dry eye.

We report a paradoxical increase in visual impairment after punctal plug placement despite improvement in corneal epithelial damage caused by mild dry eye. Ocular higher-order aberrations (HOAs) were measured sequentially with a wavefront sensor before and after punctal plug insertion in a patient with mild dry eye. Although postblink HOAs tend to increase in normal subjects or patients with dry eye, after treatment there was a maximum spike in HOAs for a few seconds that decreased gradually.

Tear film break-up time evaluated by real-time Hartmann-Shack wavefront sensing.

Purpose: To develop a novel method for measuring tear break-up time (BUT) by continuously measuring higher order wavefront aberrations using a Hartmann-Shack (H-S) aberrometer.

Methods: Wavefront aberrations up to the sixth order for a 4-mm pupil were measured in six eyes of six normal subjects using an H-S aberrometer. The aberrometry was performed once every second for up to 50 s under topical anesthesia.

Age-related changes in ocular and corneal aberrations.

Purpose: To compare the ocular and corneal higher-order aberrations (HA) in eyes of different ages.

Design: Observational cross-sectional study.

Methods: Sixty-six eyes of 66 normal subjects (age range 4-69 years; average 37.

Light scattering and optical aberrations as objective parameters to predict visual deterioration in eyes with cataracts.

Purpose: To predict the visual deterioration of eyes with cortical (CC) or nuclear (NC) cataract from objective data on ocular higher-order aberration (HOA) and forward (FLS) and backward light scattering (BLS).

Setting: Osaka University Medical School, Osaka, Japan.

Methods: Twenty-two eyes with mild NC, 41 eyes with mild CC, and 11 normal eyes were examined.

Wavefront analysis in eyes with accommodative spasm.

Purpose: To investigate changes of spherical aberration in eyes with accommodative spasm.

Design: Case reports.

Methods: Four eyes of two patients with accommodative spasm were studied.

Comparison of ocular higher-order aberrations and visual performance between photorefractive keratectomy and laser in situ keratomileusis for myopia.

The purpose was to compare the ocular higher-order aberrations and the visual performance between photorefractive keratectomy (PRK) and laser in situ keratomileusis (LASIK). Ocular aberrations and visual performance were measured after PRK in 26 eyes, after LASIK in 39 eyes, and in 29 normal myopic control eyes. Ocular aberrations were measured with a Hartmann-Shack aberrometer.

Changes of ocular aberration with accommodation.

Purpose: To study the effect of accommodation on ocular aberrations.

Design: Observational case series.

Methods: The ocular aberrations in 33 eyes of 33 young adults were measured with a Hartmann-Shack wavefront aberrometer before and during 3 diopters of accommodation.

Effect of aging on ocular light scatter and higher order aberrations.

Purpose: To study the effect of aging on ocular light scatter and higher order aberrations in humans.

Methods: Seventy-six eyes of 76 normal subjects who had refractive errors but no ocular disease were studied. Their age ranged from 4 to 69 years (mean 34.