Effect of Ambient Light Exposure on Ocular Fatigue during Sleep.

Background: To investigate the influence of nocturnal ambient light on visual function and ocular fatigue.

Methods: Sixty healthy subjects (30 men and 30 women) aged 19 through 29 years with no history of ocular disease were recruited. All subjects spent 3 consecutive nights in the sleep laboratory.

Effects of a high level of illumination before sleep at night on chorioretinal thickness and ocular biometry.

The choroid is affected by many factors. One of the factors, change in illumination has been suggested to influence choroidal thickness. However, the effects of bright light before sleep at night on the human eye are not well established.

Esotropia Surgery Considering the Angle under General Anesthesia.

Purpose: To compare the amount of esotropia corrected by surgery under general anesthesia and in a conscious state in esotropia surgery.

Methods: The charts of 42 patients who underwent surgery under general anesthesia for correction of esotropia were reviewed. Angle of deviation was measured by the alternate prism cover test in awakened state one day before and after surgery.

Demographic features of idiopathic macular telangiectasia in Korean patients.

Purpose: To investigate the clinical and demographic features of idiopathic macular telangiectasia (MacTel) in Korean patients since the introduction of spectral domain optical coherence tomography (SD-OCT).

Methods: We reviewed medical records of patients who were diagnosed with MacTel from 2009 to 2013. All patients underwent fluorescein angiography and SD-OCT and were classified as type 1 or type 2 according to the classification system proposed by Yannuzzi.

Peripapillary choroidal thickness in patients with early age-related macular degeneration and reticular pseudodrusen.

Purpose: The purpose of this study was to investigate peripapillary and macular choroidal thickness (CT) in patients with early age-related macular degeneration (AMD) with or without reticular pseudodrusen (RPD).

Methods: We investigated the medical records of 89 patients (89 eyes) with early AMD. The eyes were grouped into three categories according to the extent of RPD: no RPD, localized RPD, and diffuse RPD.

The effect and applications of acellular dermal allograft (AlloDerm) in ophthalmic plastic surgery.

Purpose: To describe the use and efficacy of AlloDerm in ophthalmic plastic and reconstructive surgery.

Methods: A retrospective review was conducted of 31 eyes of 25 patients who underwent an AlloDerm graft procedure for correction of lower lid retraction, anophthalmic socket contraction, superior sulcus deformity, implant exposure, or skin defect. Clinical outcomes were measured by the degree of improvement and incidence of complications.

Stability of Y-splitting procedure combined with hang-back recession of the rectus muscle in rabbit eyes.

Background: The Y-splitting procedure has been used both to treat up-shoots and down-shoots in Duane syndrome, and as a substitute for posterior fixation suture. The Y-split is often performed in conjunction with a hang-back recession when a large amount of recession or an adjustable suture is necessary. Herein, we evaluated the stability of Y-splitting hang-back recession in the rectus muscle.

The effect of perforated punctal plugs in the management of acquired punctal stenosis.

Objective: The objectives of this study were to report the success rates for perforated punctual plug (PPP) in the management of acquired punctual stenosis and to evaluate the factors influencing success rates.

Design: This was a retrospective, cross-sectional, comparative study.

Participants: There were 20 patients.

Three-dimensional configuration of subretinal fluid in central serous chorioretinopathy.

Purpose: The purpose of this study was to characterize the 3-dimensional (3D) configuration of subretinal fluid (SRF) in idiopathic central serous chorioretinopathy (CSC) using spectral-domain optical coherence tomography (SDOCT).

Methods: The OCT images of patients with CSC were reviewed retrospectively. The 3D configurations of SRF were assessed using a modified segmentation algorithm of SDOCT.

Effects of interpupillary distance on stereoacuity: the Frisby Davis distance stereotest versus a 3-dimensional distance stereotest.

Purpose: To evaluate the effect of interpupillary distance (IPD) on stereoacuity using 2 kinds of stereoacuity tests in a normal population.

Methods: The distance stereoacuities of 33 healthy volunteers with no evidence of ocular diseases were measured with the Frisby Davis distance (FD2) stereotest and a 3-dimensional monitor-based distance stereotest (distance 3-D stereotest). These 2 kinds of stereotests were repeated using horizontal periscopes to increase the IPD 2- and 3-fold in order to investigate the effect of IPD increase on stereoacuity.

Hyperreflective external limiting membranes after successful macular hole surgery.

Purpose: To evaluate changes in external limiting membranes (ELMs) in the foveae of patients with surgically closed macular holes.

Methods: In this retrospective observational case series, spectral-domain optical coherence tomography scan images were obtained from eyes of patients with macular holes closed after vitrectomy. The integrity of the ELMs was evaluated at the fovea.