A micro-computer program package for the computation of intraocular lens powers

An accurate micro-computer software package has been designed to assist in the calculation of IOL powers. This program set should be able to be used on any Z80 computer with the CPM operating system. It accepts measurement data, calculates the implant powers and their estimated postoperative refractions, using the same formulas as the Binkhorst IOL Power Module used in the TI- 58C programmable calculator. The advantages are that the method of entry of data helps to eliminate the clerical errors such as number transposition and impossible value entry. The program also allows for the storage of the patient information in a disc file for future use. This can speed the search for a patient's records and help to increase the efficiency of the office. The program can be executed in much less time and with greater accuracy and legibility than is possible with the TI- 58C programs.