Biomaterial Database

Near-infrared light-guided miniaturized indirect ophthalmoscopy for nonmydriatic wide-field fundus photography. 2018

Devrim Toslak, and Changgeng Liu, and Minhaj Nur Alam, and Xincheng Yao

A portable fundus imager is essential for emerging telemedicine screening and point-of-care examination of eye diseases. However, existing portable fundus cameras have limited field of view (FOV) and frequently require pupillary dilation. We report here a miniaturized indirect ophthalmoscopy-based nonmydriatic fundus camera with a snapshot FOV up to 67° external angle, which corresponds to a 101° eye angle. The wide-field fundus camera consists of a near-infrared light source (LS) for retinal guidance and a white LS for color retinal imaging. By incorporating digital image registration and glare elimination methods, a dual-image acquisition approach was used to achieve reflection artifact-free fundus photography.

UI	MeSH Term	Description	Entries
D007259	Infrared Rays	That portion of the electromagnetic spectrum usually sensed as heat. Infrared wavelengths are longer than those of visible light, extending into the microwave frequencies. They are used therapeutically as heat, and also to warm food in restaurants.	Heat Waves,Heat Wave,Infrared Ray,Ray, Infrared,Rays, Infrared,Wave, Heat,Waves, Heat
D008904	Miniaturization	The design or construction of objects greatly reduced in scale.	Miniaturisation,Miniaturisations,Miniaturizations
D009184	Mydriatics	Agents that dilate the pupil. They may be either sympathomimetics or parasympatholytics.	Cycloplegic,Cycloplegics,Mydriatic,Mydriatic Effect,Mydriatic Effects,Effect, Mydriatic,Effects, Mydriatic
D009887	Ophthalmoscopy	Examination of the interior of the eye with an ophthalmoscope.	Ophthalmoscopies
D010781	Photography	Method of making images on a sensitized surface by exposure to light or other radiant energy.	Photographies
D003941	Diagnostic Techniques, Ophthalmological	Methods and procedures for the diagnosis of diseases of the eye or of vision disorders.	Diagnostic Technic, Ophthalmological,Diagnostic Technics, Ophthalmologic,Diagnostic Technics, Ophthalmological,Diagnostic Technique, Ophthalmological,Diagnostic Techniques, Ophthalmologic,Ophthalmological Diagnostic Technic,Ophthalmological Diagnostic Technics,Ophthalmological Diagnostic Technique,Ophthalmological Diagnostic Techniques,Technic, Ophthalmological Diagnostic,Technics, Ophthalmological Diagnostic,Technique, Ophthalmological Diagnostic,Techniques, Ophthalmological Diagnostic,Diagnostic Technic, Ophthalmologic,Diagnostic Technique, Ophthalmologic,Ophthalmologic Diagnostic Technic,Ophthalmologic Diagnostic Technics,Ophthalmologic Diagnostic Technique,Ophthalmologic Diagnostic Techniques,Technic, Ophthalmologic Diagnostic,Technics, Ophthalmologic Diagnostic,Technique, Ophthalmologic Diagnostic,Techniques, Ophthalmologic Diagnostic
D005128	Eye Diseases	Diseases affecting the eye.	Eye Disorders,Eye Disease,Eye Disorder
D005654	Fundus Oculi	The concave interior of the eye, consisting of the retina, the choroid, the sclera, the optic disk, and blood vessels, seen by means of the ophthalmoscope. (Cline et al., Dictionary of Visual Science, 4th ed)	Fundus of the Eye,Ocular Fundus,Fundus, Ocular
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D017216	Telemedicine	Delivery of health services via remote telecommunications. This includes interactive consultative and diagnostic services.	Tele-Care,Tele-ICU,Tele-Intensive Care,Tele-Referral,Telecare,Virtual Medicine,Mobile Health,Telehealth,eHealth,mHealth,Health, Mobile,Medicine, Virtual,Tele Care,Tele ICU,Tele Intensive Care,Tele Referral,Tele-Referrals