PURPOSE To study the changes in corneal astigmatism after cataract surgery when the sideport incision is performed at a predetermined location away from the tunnel incision. SETTING General Hospital of Piraeus "Tzaneio", Attiki, Greece. MATERIALS AND METHODS A total of 333 eyes with corneal astigmatism ≤1.5 diopters (D) underwent cataract surgery. A three-step superotemporal clear corneal i...

PURPOSE To evaluate the impact that interocular differences in corneal asphericity (Q) exert on binocular summation measured as the contrast-sensitivity function. DESIGN Interventional case series. METHODS A total of 92 emmetropic subjects took part in the experiment, classified according to the interocular differences in corneal asphericity (deltaQ) measured with an EyeSys-2000 corneal top...

To the Editor: We read with interest the article by P.S. Hersh attempting to standardize the classification of topographic patterns after laser refractive surgery (Hersh PS. A standardized classification of corneal topography after laser refractive surgery. J Refract Surg 1997;13:571-575). To standardize a technique is always a very important and difficult task, but it is the best way to facili...