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. 2020 Oct;68(10):2213-2215.
doi: 10.4103/ijo.IJO_2032_19.

Smartphone-based intraocular lens microscope

Prithvi Chandrakanth  1 , K S Chandrakanth  1
Affiliations

Smartphone-based intraocular lens microscope

Prithvi Chandrakanth et al. Indian J Ophthalmol. 2020 Oct.

Abstract

Microscopes play an important role in the diagnosis of microorganisms and pathological lesions in ophthalmology guiding us to the appropriate management. The current trend of collecting samples and examination is mostly laboratory-based which consume time, labor, and are costly. Smartphones are being used in different fields of ophthalmology with great ubiquity. The good quality photographs obtained by smartphones along with the ease of mobility has made it possible to warrant its use in the microscopic world. This article describes a simple novel technique of preparing an intraocular lens system which can be used in conjunction with a smartphone to detect microorganisms and pathological lesions.

Keywords: Innovation; low-cost device; microscope; point of care diagnosis; smartphone photography.

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Conflict of interest statement

None

Figures

Figure 1
Figure 1
(a) Materials used to prepare IOLSCOPE; i. Black chart paper strip measuring 4 cm × 2 cm, ii. Intraocular Lens - 30D four in number, iii. Micropore, iv. Paper punching machine, v. Liquid adhesive, (b) Circular opening of 5 mm made on one end of the black strip using the punching machine, (c-f) Placing the first IOL on the circular hole and the subsequent IOL's one upon the other by applying liquid adhesive, (g) Placing the optical device on the camera of the smartphone using micropore, (h) Placing the slide on a light source (torch) and taking pictures by approximating the iolscope to it
Figure 2
Figure 2
(a) Lactophenol cotton blue (LCB) stained mount of Rhizopus, (b) LCB stained mount of Aspergillus, (c) Fungal hyphae and spores (black arrow) in KOH mount, (d) Histopathology slide of Basal Cell Carcinoma (BCC), (e) Histopathology slide of Squamous Cell Carcinoma (SCC) with keratin pearl, (f) Histopathology slide of Rhinosporidisosis with multiple round sporangia, (g) H and E stained histopathology slide showing inflammatory cells, (h) Caterpillar hair showing spines along the shaft, (i) Anterior end of the first larval stage of Oestrus ovis equipped with cephalopharyngeal skeleton showing two dark sharply curved oral hooks
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