Advances in Preoperative Testing for Cataract Surgery

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Cataract is among the most common ophthalmic conditions in the world and the leading cause of decreased visual acuity (VA).1 Unsurprisingly, cataract surgery is the most commonly performed surgery in the field. As such, the preoperative assessment of cataracts is an important and evolving area of ophthalmology. Traditionally, cataract diagnosis and evaluation has been performed with clinical examination alone, and the decision to pursue cataract surgery has been determined by combining the subjective assessments of the clinician and the patient. However, over the past decade several emerging technologies have offered ways to more objectively assess the visual significance of cataracts.2 These tests are especially relevant given the recent focus on early lenticular changes that can be visually significant for patients, even when basic VA testing and clinical examination may be otherwise unremarkable. This paper will focus on the preoperative assessment and testing of cataracts—both the traditional methods and the recently developed objective measures. In addition, the role of ancillary preoperative testing for standard cataract surgery and cataract surgery with implantation of premium intraocular lenses (IOLs) will be explored.
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