Abstract
To obtain the ophthalmic findings for diagnosis and treatment, the ophthalmologist has been allowed to observe with a handheld ophthalmoscope in which the medical photos of findings cannot be recorded. Here, the simple optical system has been designed and implemented a prototype using 3D printing that can adapt to the smartphone with conventional app camera for direct imaging retinal blood vessels. A plano-convex lens of +20D was used to adjust the lens power of the smartphone camera. The lens wheel containing 16 lenses ranging from-8D to +8D and blank of 0D was used to compensate for tolerances and errors in human-eye sight. As a result, the prototype was constructed and able to capture images of the retinal blood vessels (RBV) in subject’s eyes having been either nearsighted or farsighted vision. Using this optical technique can provide the simple, portable and inexpensive prototype adapted to smartphone and can take advantage of global networks resource for telemedicine.
Published Version
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