TY - JOUR T1 - Black intraocular lenses: near infra-red light transmission may risk treatment failure JF - British Journal of Ophthalmology JO - Br J Ophthalmol SP - 1353 LP - 1354 DO - 10.1136/bjophthalmol-2013-303474 VL - 97 IS - 10 AU - Imran H Yusuf AU - Stuart N Peirson AU - C K Patel Y1 - 2013/10/01 UR - http://bjo.bmj.com/content/97/10/1353.abstract N2 - Intractable diplopia occurs in approximately 0.8% of patients following strabismus surgery, with considerable detriment to visual quality of life. Long-term therapeutic occlusion is required to permit functional vision. Black intraocular lens (IOL) implantation is an effective therapeutic option associated with high rates of postoperative satisfaction.1 Black IOL implantation entails a cost to the public sector or patient but this may be offset by long-term clinical and social benefits and fewer hospital visits. A distinction has emerged between black IOLs that transmit near-infrared (NIR) light and those producing total occlusion of all wavelengths of light (figure 1).2 Morcher black IOLs transmit NIR light exponentially from 720 nm, with 100% transmission over 820 nm, permitting posterior segment imaging with scanning laser ophthalmoscopy (SLO) and optical coherence tomography (OCT).2 This property offers a distinct clinical advantage; SLO/OCT may detect life-threatening retinal and optic nerve diseases, such as choroidal melanoma.2 Figure 1 Black IOLs in clinical use. Near-infrared (NIR)-transmitting black IOLs: (A) 85F PMMA IOL (6 mm optic, 12 mm overall), (B) 6S PMMA IOL (10 mm optic, 12 mm overall), (C) 80D … ER -