A 3D-printed portable slit lamp for high-resolution anterior segment images

Area of Science:

• Ophthalmology
• Biomedical Engineering
• Medical Imaging

Background:

• Conventional slit lamps are essential for anterior segment examination but can be bulky and expensive.
• There is a need for portable, cost-effective imaging solutions for ophthalmologists.
• Smartphone integration offers potential for improved accessibility and data management in eye care.

Purpose of the Study:

• To develop and validate a novel 3D-printed portable slit lamp system.
• To assess the system's efficacy in capturing high-quality clinical images of the anterior segment.
• To compare the diagnostic performance and usability of the portable system with a conventional slit lamp.

Main Methods:

• A 3D-printed portable slit lamp with an LED light pen and a 0.4 mm slit was designed.
• A smartphone with a 100 mm macro lens was used as the imaging device.
• Image quality and diagnostic efficiency were evaluated by three ophthalmology specialists using Likert scales, comparing the novel system to a conventional slit lamp.

Main Results:

• The 3D-printed portable slit lamp system achieved high image quality scores (mean 4.31-4.54) comparable to conventional slit lamps.
• Diagnostic efficiency scores were also high (mean 4.38-4.69), indicating effective clinical utility.
• The device demonstrated excellent user-friendliness with high ease-of-use ratings (mean 3-4).

Conclusions:

• The 3D-printed portable slit lamp system integrated with a smartphone is an effective, easy, and inexpensive tool for anterior segment imaging.
• This portable system provides high-resolution images and diagnostic efficiency comparable to traditional slit lamps.
• The technology holds promise for enhancing ophthalmic diagnostics in various clinical settings.