ABSTRACT
Purpose: To compare glaucomatous from non?glaucomatous optic atrophy using optical coherence tomography (OCT) based on the measurement values of Bruch’s membrane opening minimum rim width (BMO?MRW), which is a difficult task otherwise due to their varied course of disease progression, treatment protocols, and systemic association to visual impairment. Methods: This study was conducted in 40 eyes, comprising 20 eyes with non?glaucomatous optic neuropathy (NGON) and 20 eyes with glaucomatous optic neuropathy (GON). All patients underwent a complete ophthalmic examination followed by an OCT optic disc scan to calculate the measurement of BMO?MRW. Results: The 5?fold cross?validated area under the curve for GON versus NGON from logistic regression models was 0.95 (95% confidence interval [CI]: 0.86–1.00) using BMO?MRW values from all sectors. The results revealed that the measurements were significantly lesser in GON than in NGON patients. Conclusion: Hence, OCT?based BMO?MRW values could be used as an additional test to compare glaucomatous with non?glaucomatous optic neuropathy patients, especially in cases of high clinical suspicion.
ABSTRACT
In this report, we have utilized a smartphone-based innovative tool named anterior segment photography with an intraocular lens (ASPI) with a cobalt blue filter on the smartphone flash for photographing fluorescein-stained corneas. An intraocular lens along with a cobalt blue filter was attached to the smartphone camera to achieve this purpose. The filter could block out all wavelengths of light except the blue wavelength (450–490 nm) emerging from the smartphone camera. A pilot study was conducted on 27 eyes of 25 patients where images of various corneal pathologies were obtained using ASPI blue light imaging. The images were clear and highly magnified and could be used for documentation, teleconsultation for expert opinion, education, and monitoring of disease progression. ASPI-aided blue light imaging could be easily fabricated and is a frugal inexpensive device, which is used by different ophthalmic personnel to obtain fluorescein-stained corneal images.
ABSTRACT
The authors describe a novel technique of performing retinoscopy assisted with a smartphone (gimbalscope). We found this technique of digital retinoscopy to be useful for demonstrating and documenting retinoscopic reflexes and in addition as an easy teaching tool. This technical report explains the assembly of our smartphone-assisted retinoscope and provides examples of the range of normal and abnormal reflexes that can be captured.
ABSTRACT
The emergence of smartphone?based imaging devices has been a boon in the field of ophthalmology, especially in obtaining high?quality ocular images. They can be specialized and utilized for imaging?specific regions of the eye. Among the multitude of applications of smartphone?based imaging, one of the upcoming major use is to image the microbiological world. Previous few reports have described attaching magnifying lenses of various types to the smartphone camera and transforming it into a microscope for imaging fungal hyphae and ocular surface parasites. We describe a novel technique of attaching the smartphone?based intraocular lens microscope (IOLSCOPE) to the slit lamp, thereby utilizing the slit lamp joystick for moving the smartphone over the concerned slide specimen to make it steady and obtain images of high resolution. This innovative do?it?yourself novel modification is especially useful in peripheral centers, vision centers, and local clinics for immediate screening and identification of microbial pathogens such as fungi and ocular surface parasites.