Embodiments of the present disclosure provide a photocoagulation device and a method to produce a light beam of a predefined wavelength using the photocoagulation device. The device comprises at least one light source, non-imaging light collimator (NILC), at least one first and second condenser, a ball lens and at l...

Embodiments of the present disclosure disclose a method and a computing unit for imaging of wider angle fundus of an eye of a subject. The method discloses guiding placement of an imaging device at set of predetermined locations on the eye. The method further comprises receiving set of images of the fundus of the ey...

The present disclosure is related to an apparatus for capturing retina and cornea images of eye and for measuring refractive power of eye. The apparatus comprises an objective lens, illumination unit, projection unit, fixation unit, movable mirror and image sensor. The illumination unit projects illumination beam on...

The present disclosure discloses a method for capturing images of an eye of an unresponsive subject using a photo-refraction device comprising a computing unit and an optical adapter. The method comprises acts of detecting by an image capturing unit face of the unresponsive subject, navigating by processing unit, th...

The present disclosure relates to ophthalmic imaging equipment for obtaining image of an eye. In an embodiment, the present disclosure provides for ophthalmic imaging device with a single light source, i.e., a multicolored LED and a single optical path for the light source. In particular, the ophthalmic device compr...

ABSTRACT The embodiments herein provide a system and method for detecting and capturing a focused image. The system comprises of an image capturing unit  edge detection unit and a focusing unit. The image capturing unit obtains plurality of images sequentially. The edge detection unit identifies region of interest ...

AN APPARATUS AND A METHOD FOR ADAPTIVE ILLUMINATION ABSTRACT The present invention discloses an apparatus and a method for adaptive illumination, the system comprising, one or more light sources to emit light beams of multiple wavelengths, a time multiplexing module to produce a time multiplexed beams from the...

The present disclosure relates to image filtering techniques for enhancing image quality. In one embodiment  two filtering techniques are applied on an image. Firstly  an adaptive weighted median filtering operation is performed on an acquired low contrast image corrupted by impulsive noise. Subsequently  a guided i...

The present disclosure relates to image filtering techniques for enhancing image quality. In one embodiment, two filtering techniques are applied on an image. Firstly, an adaptive weighted median filtering operation is performed on an acquired low contrast image corrupted by impulsive noise. Subsequently, a guided i...

AN APPARATUS FOR MULTI-MODE IMAGING OF AN EYE The present disclosure relates to an apparatus for multi-mode imaging of an eye. The apparatus integrates at least two modes namely OCT, hyper-/multi-spectral imaging, and RGB/IR. The apparatus captures high resolution and larger dynamic range OCT and hyper-/multi-spe...

Non-tactile and non-evasive tonometer utilizing air flow with a definite amount of pressure to the eye and a mechanism to deflate the thin foil set that is placed near to eye ball such that re-bounded air hits on it. The mechanism involves acquiring or capturing then the images of the known pattern marking on thin f...

The present disclosure relates to image filtering techniques for enhancing image quality. In one embodiment two filtering techniques are applied on an image. Firstly an adaptive weighted median filtering operation is performed on an acquired low contrast image corrupted by impulsive noise. Subsequently a guided imag...

The present disclosure generally relates to the field of medical devices that includes a wearable device and a system to determine corrective refractive parameters of a subject. The wearable device comprises a pair of tunable lens-systems that are controlled based on optical parameters. Further, the wearable device ...

ABSTRACT Objective refraction error measuring apparatuses are known. Once the measurement is done, there is no known method for confirming if the measurements are correct. Disclosed is an apparatus (200) wherein once the error is measured, the determined values of the error are used to set the characteristics of a ...

ABSTRACT A device (200) for an annular light source is disclosed. The disclosed device has a light guide portion and a light collector portion. The light guide portion is cup shaped. The wall of the cup has a cross section defined by sections of two ellipses (206, 212) disposed in a predefined manner with each othe...

This disclosure discloses an apparatus and method thereof for a comprehensive visual function testing apparatus 100. A plurality of visual test stimuli may be spatiotemporally sequenced and presented to the subject undergoing visual function tests including, but not limited to, visual acuity test, stereoscopic visio...

ABSTRACT Disclosed is a method for defining a structure of an annular light guide device (415, 755), for a fundus camera. The method is as follows. An initial cross section of a wall of a light guide device (415, 755) is created in a predefined way. A hollow cavity for a light source (420) is then defined within th...

Preterm babies have a high risk of retinopathy. Doctors conduct fundus fluorescein angiography to determine the state of the blood vessels in their retinas. Disclosed is a system (100) for conducting fundus fluorescein angiography configured for light weight, small size, and providing a sharp, high contrast angiogra...

Disclosed is a device 100 for generating a toroidal source of illumination is disclosed. The device 100 comprises a translucent disc 105 with a concentric hole 110. A planar coil 115 of side emitting optic fibre is disposed on one surface of the disc 105. The coil 115 is energised with an LED 120 at one end of the c...

Disclosed is a system 200 for retinal imaging. The type of image to be captured is selected by a user. Corresponding fixation stimulus is displayed on a fixation screen 220 of the disclosed device 201 for the subject to fix their gaze on. The device 201 comprises illumination sources 212 and 213, illumination optics...

A method (400) and system (100) for determining tear-breakup time. Method (400) comprising projecting (402) concentric rings pattern, using concentric rings generator 102d, on exterior surface of subject’s eyeball. Method (400) comprising capturing (404) a video of subject’s eyeball from substantially in front of th...

A system (100) for generating an image dataset is disclosed. The dataset may be used for training a machine learning system that does image segmentation, object detection or classification. To generate the image dataset, the system (100) uses text-guided image manipulation. The system (100) takes a one or more seed ...