Indian Journal of Medical Research

INNOVATIONS
Year
: 2020  |  Volume : 152  |  Issue : 7  |  Page : 22--23

An innovative filter for smartphones in tele-ophthalmology


Athul S Puthalath1, Neeti Gupta2,  
1 Department of Ophthalmology, All India Institute of Medical Sciences, Rishikesh 249 203, Uttarakhand, India
2 Department of Ophthalmology; Rishikesh Eye Bank, All India Institute of Medical Sciences, Rishikesh 249 203, Uttarakhand, India

Correspondence Address:
Neeti Gupta
Department of Ophthalmology; Rishikesh Eye Bank, All India Institute of Medical Sciences, Rishikesh 249 203, Uttarakhand
India




How to cite this article:
Puthalath AS, Gupta N. An innovative filter for smartphones in tele-ophthalmology.Indian J Med Res 2020;152:22-23


How to cite this URL:
Puthalath AS, Gupta N. An innovative filter for smartphones in tele-ophthalmology. Indian J Med Res [serial online] 2020 [cited 2021 Sep 26 ];152:22-23
Available from: https://www.ijmr.org.in/text.asp?2020/152/7/22/316850


Full Text

Conventionally, corneal pathologies are photographed using slit lamp photography (SLP) units after staining them with fluorescein stain however, in situations where SLP is not available/possible (bedridden patients, during field medical/eye camps, infants, uncooperative patients etc.) it is difficult to capture fluorescein-stained images of the cornea. Although smartphones can capture good-quality ocular image, none have a blue filter to capture such images. Cobalt blue light unit (C-BLU) filter was developed in the department of Ophthalmology, All India Institute of Medical Sciences, Rishikesh, India, in August 2019.

This filter is a low-cost, pocket-sized adapter that can be used by anyone with a modern smartphone to obtain a clear image of the fluorescein-stained cornea ([Figure 1] and Video). The c-BLU filter can be mounted on any smartphone, where it uses of its native flashlight [Figure 1]B. The photographs captured with SLP (gold standard) ([Figure 2]A, [Figure 2]C, [Figure 2]E and [Figure 2]G) were compared with C-BLU filter images [Figure 2]B, [Figure 2]D, [Figure 2]F and [Figure 2]H and were comparable and reproducible. A number of corneal pathologies [Figure 3] including a case of pseudomembranous conjunctivitis in a one month old neonate† were photo-documented and monitored using C-BLU [Figure 4]. This can be an irreplaceable tool in the field of tele-ophthalmology and healthcare delivery when SLP is not available.{Figure 1}{Figure 2}{Figure 3}{Figure 4}

[SUPPORTING:1]

Acknowledgment: Authors acknowledge the department of Ophthalmology, AIIMS, Rishikesh, for their continued support and motivation. Patent process is pending on the C-BLU filter.

Conflicts of Interest: None.