INTRODUCTION To evaluate the relationship between retinal nerve fiber layer (RNFL) thickness measured by Cirrus high-definition (HD) optical coherence tomography (OCT) and the axial length and refractive error of the eye. MATERIALS AND METHODS A total of 100 eyes of 100 healthy subjects (age 20-34 years with M/F ratio of 57/43), comprising 50 eyes with emmetropia [spherical equivalent (SE) 0 ...

PURPOSE To characterize 24-hour variation of intraocular pressure (IOP) in healthy young adults based on the axial length of the eye. METHODS Twenty-four-hour IOP data were collected from nine healthy young adults with hyperopia, age range 18 to 25 years, in a sleep laboratory. Every 2 hours, measurements of IOP were taken in the participants after 5 minutes in the supine position and 5 minut...

PURPOSE To measure the retinal thickness of the posterior pole in healthy Chinese subjects using a retinal thickness analyzer and to compare the retinal thicknesses between different age, gender, and refractive error groups. METHODS Between February 2002 and September 2004, healthy Chinese subjects (age range, 21-50 years), underwent measurements of visual acuity, refractive error, intraocula...

PURPOSE To evaluate retinal thickness (RT), retinal volume (RV) and choroidal thickness (ChT) in Chinese children using Cirrus-HD optical coherence tomography (OCT), and assess their associations with spherical equivalent (SE), age and gender. METHODS This was a prospective study that recruited 193 healthy Chinese children (193 eyes) with no ophthalmic disease history between December 2012 an...

PURPOSE To assess the influence of small-incision lenticule extraction (SMILE) for high myopia on visual image quality assessed by logarithm Strehl ratio (logVSX) and put this into a clinical context pairwise comparing logVSX postoperative eyes with those myopic controls wearing spectacles and/or contact lenses. SETTING University hospital. DESIGN Prospective cross-sectional study. METHODS Pati...

PURPOSE To investigate the central macular thickness (CMT) in myopic, emmetropic, and hyperopic Chinese children using Optical Coherence Tomography. METHODS 168 right eyes of Chinese subjects aged 4-18 were divided into 3 groups based on their postcycloplegic spherical equivalent: myopes (<-1.0 D); emmetropes (≥-1.0 to ≤+1.0 D); and hyperopes (>+1.0 D) and the CMT was compared before/after ag...