1. Accommodation: Evaluation of the theories of presbyopia;Alpern,1962
2. Diagnosis and management of ocular motility disorders;Ansons,2001
3. Further investigations of the AC/A ratio;Arnott;British Orthoptic Journal,1971
4. Time course and variability of dark focus;Baker;Investigative Ophthalmology & Visual Science,1983
5. Statistical methods for assessing agreement between two methods of clinical measurement;Bland;Lancet,1986