Comparison of early visual outcomes after SMILE using VISUMAX 800 and VISUMAX 500 for myopia: a retrospective matched case-control study.

VISUMAX 800 was introduced to improve the patient experience and clinical outcomes of small incision lenticule extraction (SMILE). This was a retrospective, matched, and case-control study (1:2) controlled for preoperative central corneal thickness and refractive error that compared early refractive and visual outcomes after SMILE using VISUMAX 800 and VISUMAX 500 to treat myopia. We included 50 eyes that underwent the VISUMAX 800 SMILE and 100 eyes that underwent the VISUMAX 500 SMILE.

Incidence, Long-Term Visual Outcomes, and Mortality in Retinopathy of Prematurity in Korea: A Nationwide Population-Based Study.

Purpose: To evaluate the incidence, visual prognosis, and mortality in retinopathy of prematurity (ROP) in Korea.

Methods: We used the National Health Insurance and the Korean Disability Registry database, which covers the entire newborn population in 2006 to 2014 and includes information on all newborns diagnosed with ROP until 2016. Using these databases, we evaluated the incidence, rate of visual impairment (VI), and mortality in patients with ROP according to the birth weight categories and treatment modalities.

Different surgical outcomes in infantile exotropia according to onset time.

Purpose: To determine whether age of onset influences surgical outcomes in infantile exotropia.

Methods: The medical records of patients at our tertiary care facility who underwent bilateral lateral rectus recession for infantile exotropia during the period 2004-2013 were reviewed retrospectively. Patients were grouped by onset age: 6 months or earlier (E6 group) or later than 6 months (L6 group).

Faden operation in consecutive esotropia.

Purpose: To evaluate the efficacy of Faden procedure for correcting consecutive esotropia (ET).

Methods: This retrospective study included 25 children who developed consecutive ET after primary bilateral lateral rectus (BLR) recession and underwent medial rectus (MR) recession with the Faden procedure (Faden group) or MR recession only (control group) between 2013 and 2018. Postoperative deviation angles were evaluated at each follow-ups until postoperative 6-month visit.

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.

Eye Drop Dispenser Type and Medication Possession Ratio in Patients With Glaucoma: Single-Use Containers Versus Multiple-Use Bottles.

Purpose: To determine whether the consumption of topical glaucoma medication is influenced by the type of eye drop dispenser.

Design: Retrospective cohort study.

Methods: We examined 366 patients with open-angle glaucoma or ocular hypertension who were bilaterally treated with 0.

Early versus late surgery for infantile exotropia.

Purpose: To determine whether age at surgery influences postoperative outcome in infantile exotropia.

Methods: This longitudinal, retrospective study included children who underwent bilateral lateral rectus recession between 2004 and 2012 for an exotropia with onset by 12 months of age. Surgical outcomes were considered failures if recurrence with exodeviation of >8 or overcorrection with esodeviation of >5 developed during postoperative period.

Time and Factors Affecting the Direction of Re-drift in Essential Infantile Esotropia.

Purpose: To investigate the development pattern and related factors of postoperative re-drift in infantile esotropia.

Methods: A total of 112 patients with infantile esotropia who underwent surgery before 3 years of age were included. Surgical outcomes were divided into (1) consecutive exotropia: more than 8 prism diopters (PD) of exodeviation; (2) recurrent esotropia: more than 8 PD of esodeviation; and (3) monofixation syndrome: maintenance of deviations within 8 PD.

Prevalence, Age at Diagnosis, Mortality, and Cause of Death in Retinitis Pigmentosa in Korea-A Nationwide Population-based Study.

Purpose: To determine the prevalence and mortality of retinitis pigmentosa (RP) patients in Korea.

Design: Population-based retrospective cohort study.

Methods: We used data covering the 2011-2014 period from the Rare Intractable Disease (RID) registry and Health Insurance Review and Assessment (HIRA) service, which include information on all patients diagnosed with RP based on predefined diagnostic criteria.

Effects of Head-Mounted Display on the Oculomotor System and Refractive Error in Normal Adolescents.

Purpose: To investigate the clinical effects of head-mounted display on the refractive error and oculomotor system in normal adolescents.

Methods: Sixty volunteers (age: 13 to 18 years) watched a three-dimensional movie and virtual reality application of head-mounted display for 30 minutes. The refractive error (diopters [D]), angle of deviation (prism diopters [PD]) at distance (6 m) and near (33 cm), near point of accommodation, and stereoacuity were measured before, immediately after, and 10 minutes after watching the head-mounted display.

Comparison of Clinical Features and Long-term Surgical Outcomes in Infantile Constant and Intermittent Exotropia.

Purpose: To evaluate the long-term surgical outcomes and the clinical features between infantile-onset constant and intermittent exotropia.

Methods: The medical records of 67 patients diagnosed as having infantile exotropia before 12 months of age who underwent surgery were reviewed retrospectively. Patients were divided into intermittent exotropia and constant exotropia groups based on presentation before surgery.