Global analysis of daily new COVID-19 cases reveals many static-phase countries including the United States potentially with unstoppable epidemic.

Background: The coronavirus disease 2019 (COVID-19) pandemic is hitting many countries. It is hypothesized the epidemic is differentially progressing in different countries.

Aim: To investigate how the COVID-19 epidemic is going on in different countries by analyzing representative countries.

[A comparison study of pulsitile ocular blood flow in normal eyes and primary open angle glaucoma].

Objective: To compare pulsatile ocular blood flow (POBF) and intraocular pressure (IOP) in primary open angle glaucoma (POAG) and normal control group matched for age, sex and refraction error, to investigate the rule of hem-dynamics in POAG and to determine the sensitivity and specificity of POBF measurement as a diagnostic test for glaucoma.

Methods: Prior to the test a questionnaire was completed to determine age, sex, refractive error, family history of glaucoma, history of eye diseases, ocular medication, medical history and using of systemic beta-blockers. Patients of POAG were determined by following diagnostics standards: (1) Three IOP >25 mm Hg in different times of one day.

Near-work activity, night-lights, and myopia in the Singapore-China study.

Objective: To investigate the relationship among near-work activity, night-lights, and myopia in schoolchildren in Singapore and Xiamen, China.

Methods: The refractive error and ocular dimensions of 957 Chinese schoolchildren aged 7 to 9 years in Singapore and Xiamen, China, were determined using cycloplegic autorefraction and A-scan ultrasound biometry. Information on near-work activity (number of books read per week, reading in hours per day) and night-light use before age 2 years was obtained.