A slit lamp microscope of an aspect example includes a scanner, a controller, and an image set creation processor. The scanner is configured to scan an anterior segment of a subject's eye with slit light to collect an image group. The controller is configured to control the scanner to apply two or more scans to the anterior segment. The image set creation processor is configured to create an image set by selecting a series of images corresponding to a scan area from two or more image groups collected by the scanner in the two or more scans.

A method includes receiving, by one or more processors, operating characteristics at which a spectral sensor was configured while the spectral sensor captured a multi-dimensional spectral data package of a target object. The method, also, includes identifying, by the one or more processors, one or more artifacts caused by the operating characteristics at which the spectral sensor was configured while the spectral sensor captured the multi-dimensional spectral data package of the target object, and generating, by the one or more processors, a calibrated multi-dimensional spectral data package of the target object by removing the one or more artifacts from the multi-dimensional spectral data package of the target object.

A system includes system housing, an eccentric radiation source, and a radiation sensor. The radiation produced by the eccentric radiation source can be collected by the radiation sensor to generate images of retinas for a patient. The system also includes a vision screening device connected with the eccentric radiation source and the radiation sensor via the system house that can control and synchronize actions for the eccentric radiation source and the radiation sensor. The vision screening device further analyzes the images generated by the radiation sensor via neural network algorithms to determine spherical error slopes, refractive errors, and recommendations for the patient.

An instrument includes a housing with a lower hand-held portion having a user-input button and a display for displaying an MPOD score for the user. The instrument further includes a viewing tube coupled to the hand-held portion. The viewing tube terminates in an eye cup. The viewing tube is transverse to the lower hand-held portion and transmits light from a first light source towards a reflector and is reflected off the reflector through an aperture in a blocking wall and in a direction toward the macula. The first light source is an LED and provides two colored lights alternating at a frequency to create a flicker. The frequency is used to determine an amount of macular pigment of the macula of the user. A second light source is located in the first portion of the viewing tube and configured to illuminate a surface of the blocking wall.

The methods and systems provided can automatically determine an Arteriolar-to-Venular diameter Ratio, AVR, in blood vessels, such as retinal blood vessels and other blood vessels in vertebrates. The AVR is an important predictor of increases in the risk for stroke, cerebral atrophy, cognitive decline. and myocardial infarct.

A slit lamp microscope of an aspect example includes a scanner, a controller, and an image set creation processor. The scanner is configured to scan an anterior segment of a subject's eye with slit light to collect an image group. The controller is configured to control the scanner to apply two or more scans to the anterior segment. The image set creation processor is configured to create an image set by selecting a series of images corresponding to a scan area from two or more image groups collected by the scanner in the two or more scans.

A slit lamp microscope of an aspect example includes a scanner, a controller, and an image set creation processor. The scanner is configured to scan an anterior segment of a subject's eye with slit light to collect an image group. The controller is configured to control the scanner to apply two or more scans to the anterior segment. The image set creation processor is configured to create an image set by selecting a series of images corresponding to a scan area from two or more image groups collected by the scanner in the two or more scans.

A vision detection apparatus is provided which comprises an eye lens, and the followings which are juxtaposed, with the eye lens as a common component: an ocular axial length measurement light path for measuring an ocular axial length of a detected eye; a diopter detection light path for obtaining refractive error information of the tested eye; an optotype light path for providing a fixation image for the detected eye 1 and enabling the detected eye to gaze stably; an eye position monitoring light path for performing three-dimensional positioning for the detected eye and collect imaging information of the detected eye. Through the present disclosure, it is possible to obtain information on refractive errors in the eyes, measure the anterior and posterior segment regions, and obtain eye parameters such as axial length, which has high practical value in vision detection of the teenagers.

Clinical-quality eye examinations are provided at locations remote from the physician and outside of a clinical setting. A portable optical device and corresponding software are delivered to the patient's location. The portable optical device is configured for patient use in self-conducting an eye or vision exam and taking optical measurements. As a function of type of optical measurement data or health consideration of the patient, the corresponding software provides uploading and live streaming of the optical measurement data to the physician. The corresponding software is executed during the patient conducting the eye (vision) exam and enables the remotely located physician, to participate in the same via video conference. Alternatively, an artificial intelligence resource operating remotely or locally can provide physician-type guidance and eye health assessments. Alignment of device and patient eyes can be facilitated for remote exams.

A stick controller for adjusting the position of an examination unit with respect to an eye to be examined in an ophthalmic eye-examining device includes an operation unit configured to be operated by a user so as to be positioned in a first driving area or a second driving area; a first magnetic coupling part coupled to the operation unit and configured to move along a first area together with the operation unit; a second magnetic coupling part detachably coupled to the first magnetic coupling part by magnetic force and configured to move along a second area; and a control signal generation unit configured to output a first drive control signal when the operation unit is positioned in the first driving area and output a second drive control signal when the operation unit is positioned in the second driving area.