Table 4. Mean intraocular pressure (IOP) obtained in children of different ethnicities and adult Chinese.

Study	Ethnicity	Age (years)	Method	Mean±SD
Li et al. (current study)	Northern Chinese	7.1±0.4	Non-contact tonometry	13.5±3.1
		12.7±0.5	Non-contact tonometry	15.8±3.5
Jiang et al.[37]	Eastern Chinese	4–18	Non-contact tonometry	17.6±2.7
Hikoya et al.[30]	Japanese	8 months–18	Tono-Pen	13.9±2.4
Muir et al.[44]	Black	5–17	Goldmann applanation and Tono-Pen	19.3±6.0
	White			17.7±4.2
Yildirim et al.[35]	Turkish	10.1±1.6	Noncontact tonometry	16.7±2
Sahin et al.[34]	Turkish	7–12	Tono-Pen	17.47±2.7
Osmera et al.[31]	Czech	7–17	Goldman applanation Tonometry	14.5±2.6
Lee et al.[13]	Singaporean Chinese	9–11	Non-contact tonometry	16.6±2.7
Doughty et al.[36]	White	5–15	Non-contact tonometry	16.7±2.9
Lim et al.[33]	Singaporean (Chinese, Malays and Indians)	13.97±0.9	Ocular Response Analyzer	15.12±2.84
Heidary et al.[32]	Malay	12.27±2.76	Non-contact tonometry	15.65±3.05
Zhao et al.[38]	Northern Chinese	50+	Perkins	13.5±2.2
Xu et al.[45]	Northern Chinese	40+	Non-contact tonometry	16.1±3.4
He et al.[40]	Southern Chinese	50+	Tonopen	15.2±3.1
Lin et al.[41]	Southern Chinese	65+	Non-contact tonometry	12.9±3.1
Foster et al.[42]	Singaporean Chinese	40+	Goldman applanation Tonometry	15.3