"Refraction, Ocular methods." . . "Œil Réfraction." . . "Eyeglasses." . . "Historical." . . . . "Ojo Acomodación y refracción." . . "Lunettes." . . "Anteojos." . . "Accommodation, Ocular." . . "Refraction, Ocular." . . "Humans." . . . . . . . . . "Refraction of the human eye and methods of estimating the refraction, including a section on the fitting of spectacles and eye-glasses" . "Refraction of the human eye and methods of estimating the refraction, including a section on the fitting of spectacles and eye-glasses"@en . . . . . . . . . "Refraction of the human eye and methods of estimating the refraction including a section on the fitting of spectacles and eye-glasses, etc" . "Refraction of the human eye and methods of estimating the refraction including a section on the fitting of spectacles and eye-glasses, etc"@en . . . . . "Illustration" . "Refraction of the human eye and methods of estimating the refraction : including a section on the fitting of spectacles and eye-glasses"@en . . "Refraction of the human eye and methods of estimating the refraction : including a section on the fitting of spectacles and eye-glasses" . . . . . . . "Refraction of the human eye and methods of estimating the refraction" . "Refraction of the human eye and methods of estimating the refraction"@en . . . . . "Refraction of the human eye and methods of estimating the refraction : including a section on the fitting of spectacles and eye-glasses, etc"@en . . . . . . "Refraction of the human eye and methods of estimating the refraction, including a section on the fitting of spectacles and eye-glasses, etc" . . . . . . . . . . . . . . . "Refraction of the human eye and methods of estimating the refraction, including a section on the fitting of spectacles and eye-glasses. Rev. and edited by Monroe Thorington"@en . "Refraction of the human eye and methods of estimating the refraction: including a section on the fitting of spectacles and eye-glasses, etc"@en . . . . "Refraction of the human eye and methods of estimating the refraction including a section on the fitting of spectacles and eye-glasses"@en . "Refraction of the human eye and methods of estimating the refraction including a section on the fitting of spectacles and eye-glasses" . "Œil Examen." . . "Ojo Examen." . .