An optometric apparatus includes a luminous flux projecting unit for projecting a luminous flux to one eye of a subject to be measured, an imaging unit for imaging an anterior part of the eye illuminated by the luminous flux projecting unit, a position detecting unit for detecting the position of the...http://www.google.co.uk/patents/US6145990?utm_source=gb-gplus-sharePatent US6145990 - Automatic alignment optometric measurement apparatus and method using the same
