1. Is all asthenopia the same?;Sheedy;Optom Vis Sci,2003
2. Relations between dark accommodation and psychosomatic symptoms.;Jaschinski-Kruza;Ophthalmic Physiol Opt,1992
3. Visual discomfort and astigmatic refractive errors in VDT use.;Wiggins;J Am Optom Assoc,1991
4. Effects of residual astigmatism in contact lens wear on visual discomfort in VDT use.;Wiggins;J Am Optom Assoc,1992
5. The efficacy of computer glasses in reduction of computer worker symptoms.;Butzon;Optometry,2002