Intraocular lens power calculations: are we stuck in the past?

摘要

During the last three decades, cataract surgery has undergone changes that have been nothing short of miraculous. As a resident in ophthalmology, all but 15 of my 123 cataract surgeries were intracapsular extractions, with only slightly more than two-thirds receiving intraocular lenses (IOLs). The corneal incisions that we made were enormous, vitreous involvement was not uncommon and some amount of corneal oedema on the first postoperative day was de riguer. Clear vision without the aid of spectacle correction was never even a question and the success or failure of our surgeries was based on how willing an eye may have been to forgive our trespasses.