Chandrakanth, PrithviVerghese, ShishirShiroya, PinkalKhan, Aiman AGosalia, HirikaRevathi, RNarendran, Venkatapathy2023-08-252023-08-252023-01Chandrakanth Prithvi, Verghese Shishir, Shiroya Pinkal, Khan Aiman A, Gosalia Hirika, Revathi R, Narendran Venkatapathy. Smartphone co-aided cobalt blue anterior segment with intraocular lens photography. Indian Journal of Ophthalmology. 2023 Jan; 71(1): 290-2931998-36890301-4738http://imsear.searo.who.int/handle/123456789/224806In this report, we have utilized a smartphone-based innovative tool named anterior segment photography with an intraocular lens (ASPI) with a cobalt blue filter on the smartphone flash for photographing fluorescein-stained corneas. An intraocular lens along with a cobalt blue filter was attached to the smartphone camera to achieve this purpose. The filter could block out all wavelengths of light except the blue wavelength (450–490 nm) emerging from the smartphone camera. A pilot study was conducted on 27 eyes of 25 patients where images of various corneal pathologies were obtained using ASPI blue light imaging. The images were clear and highly magnified and could be used for documentation, teleconsultation for expert opinion, education, and monitoring of disease progression. ASPI-aided blue light imaging could be easily fabricated and is a frugal inexpensive device, which is used by different ophthalmic personnel to obtain fluorescein-stained corneal images.Anterior segment smartphone photographycobalt blue filterintraocular lensocular surface diseaseJournal ArticleIndiaDepartment of Retina & Vitreous, Aravind Eye Hospital & Postgraduate Institute of Ophthalmology, Coimbatore, IndiaDepartment of Cornea, Aravind Eye Hospital & Postgraduate Institute of Ophthalmology, Coimbatore, Tamil Nadu, India