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   Table of Contents      
OPHTHALMIC IMAGE
Year : 2020  |  Volume : 68  |  Issue : 8  |  Page : 1658-1659

Using smartphone flashlight as slit lamp light source


1 Bascom Palmer Eye Institute, Miami, FL, USA
2 Mongoose Enterprises, Miami, FL, USA

Date of Web Publication24-Jul-2020

Correspondence Address:
Dr. Ta C Chang
Bascom Palmer Eye Institute, 900 NW 17th Street, 450N, Miami, FL 33136
USA
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijo.IJO_2335_19

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How to cite this article:
Chang TC, Ziff M. Using smartphone flashlight as slit lamp light source. Indian J Ophthalmol 2020;68:1658-9

How to cite this URL:
Chang TC, Ziff M. Using smartphone flashlight as slit lamp light source. Indian J Ophthalmol [serial online] 2020 [cited 2020 Aug 10];68:1658-9. Available from: http://www.ijo.in/text.asp?2020/68/8/1658/290441



In the event of a power outage, the smartphone flashlight may be used as a light source for the slit lamp. First, the outer casing of the slit lamp tower is removed [Figure 1], followed by the removal of the bulb and the condensing lens [Figure 2]. The phone flashlight is turned on, centered over the slit apparatus and taped in place [Figure 3] and [Figure 4]. This produces a bright slit beam of adjustable height/width comparable to that of the original bulb. The cobalt blue filter can be applied as needed. This low-cost setup may be useful in an emergency when the power outage occurs unexpectedly when there is a bulb malfunction without an adequate replacement, or in areas of low resources during electricity rationing.[1]
Figure 1: The outer casing of the slit lamp tower is removed

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Figure 2: The bulb and condensing lens are removed

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Figure 3: Smart phone flashlight is turned on, centered over the slit apparatus and taped in place

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Figure 4: A bright, adjustable slit beam is produced

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Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.



 
  References Top

1.
Furdová A, Krčméry V, Horkovičová K, Furdová A, Sláviková T. Technical options of documentation of the anterior segment and the eye fundus findings within mission. Cesk Slov Oftalmol 2016;72:86-90.  Back to cited text no. 1
    


    Figures

  [Figure 1], [Figure 2], [Figure 3], [Figure 4]



 

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