Table 4.

Studies of Myopia Progression in Adults 25 to 40 Years

Author	Population	Number With Myopia/Total	Age (Years)	Duration (Years)	Annual Progression (D)	% Progressing
Zadnik and Mutti.71	US law students	87	—	∼4		47% by ≥0.50 D
Waring et al.59	Fellow eye of US RK patients	45	Mean = 33.5	10	−0.06	—
Ellingsen et al.60	US practice patients	39	30 to 39	10	−0.04	32% by >0.50 D
McBrien and Adams4	UK microscopists	223/316	Median = 29.9	2	−0.18	48% by ≥0.37 D
Loman et al.7	US law students	96/177	27	2	Self-report	86%
Bullimore et al.62	US soft contact lens wearers	291	Mean = 28.5	5	−0.09	36% by ≥0.75 D 49% by ≥0.50 D
Bullimore et al.72	US university staff	268	Mean = 30.7	5	−0.03	5% by ≥0.75 D 16% by ≥0.50 D
Li et al.74	Chinese rural adults	?/595	30 to 39	5	−0.03
Verkicharla et al.70	Indian practice patients	656	26 to 30	1	−0.07	—

Studies are listed in chronological order. Only two studies used cycloplegic refraction.^59,72

RK = radial keratotomy.