1. On emmetropia and ametropia;van Alphen;Ophthalmologia,1961
2. The adrenergic receptors of the intraocular muscles of the human eye;van Alphen;Investigative Ophthalmology,1976
3. Elasticity of tissues involved in accommodation;van Alphen;Vision Research,1991
4. Age-dependent loss of accommodative amplitude in rhesus monkeys: An animal model for presbyopia;Bito;Investigative Ophthalmology and Visual Science,1982
5. The dynamics of accommodation (ciliary muscle contraction, zonular relaxation and lenticular deformation) as a function of stimulus strength and age in iridectomized rhesus eyes;Bito;Investigative Ophthalmology and Visual Science (Suppl.),1987