Laser/light applications in ophthalmology: Posterior segment applications

Among medical fields, ophthalmology has perhaps the richest history with regard to the widespread application of laser technologies. The first experimental use of laser in ophthalmology was that of the German ophthalmologist Gerd Meyer-Schwickerath, who began using the Beck arc in 1949.¹,² By 1954, Meyer-Schwickerath had treated 41 patients with the xenon arc photocoagulator and by 1957, he reported that he was able to close 82 macular holes with this technology.¹ Working together with Littmann from the Carl Zeiss Company, he created a similar xenon arc photocoagulator which became available for widespread ophthalmic applications in the late 1960s and was used more frequently in the 1970s. Since then, lasers have been used with notable success for a wide variety of ophthalmic conditions including refractive error, glaucoma, lens-related conditions such as posterior capsular opacification, and retinal conditions including diabetic retinopathy and age-related macular degeneration.