Reply: We would like to thank Cheng et al. for their comments. The Zywave unit used by them (commercial software 5.09) is different from the one used in our study (software 4.45SP2). Using the pupillometry function, software 5.09 has no fixation target light and the infrared laser runs continuously at 2 mW of power during the measurement. Software 4.45SP2 has no fixation target light, and the i...

PURPOSE The author reports the results of visual and binocular tests performed on patients who had primary insertion of intraocular lenses following the removal of cataracts in their childhood. METHODS Monocular and binocular tests were performed on 21 patients using the same equipment for sensory testing for binocularity on all patients before the history was abstracted from the clinical rec...

AIM To describe the distribution of cataract subtypes present before surgery among a defined population of older, bilaterally pseudophakic individuals. METHODS This was a cohort study of bilaterally pseudophakic individuals participating in the Salisbury Eye Evaluation (SEE), and their locally resident siblings. Subjects underwent slit lamp and retroillumination photography and grading using ...

PURPOSE The study evaluated-theoretically and experimentally-the longitudinal chromatic aberration (LCA) and through-focus energy efficiency (TF-EE) of diffractive-refractive bifocal intraocular lenses (2f-IOLs). METHODS Four aspheric 2f-IOLs (Tecnis +4.00 diopter [D] ZMA00, +2.75 D ZKB00, and AcrySof +4.0 D SN6AD3, +2.5 D SV25T0) of same base power 30 D, but different design, additional (add...