An ophthalmological image processing device and method are disclosed in which a reference image of an eye of a person is received and analyzed in a processor by calculating a quality measure, the quality measuring being indicative of a suitability of the reference image for a cyclorotation assessment; and an evaluation is performed to determine whether the reference image is suitable for a cyclorotation assessment.

The disclosure relates to systems and methods for performing eye surgery in which a single image that simultaneously presents a graphical representation of a planned or actual flap location superimposed with a graphical representation of a planned or actual area of ablation is used.

In some embodiments, a system for providing a therapeutic treatment to a patient's eye includes a treatment beam source configured to transmit a treatment beam along a treatment beam path. The system further includes a processor coupled to the treatment beam source, the processor being configured to direct the treatment beam onto retinal tissue of the patient's eye and deliver a series of short duration pulses from the treatment beam onto the retinal tissue at a first treatment spot to treat the retinal tissue. In some embodiments, a pre-treatment evaluation method using electroretinography (ERG) data may be used to predict effects of treatment beams at different power values and to determine optimal power values.

A system (20) includes a laser (48), configured to irradiate a target site (41) in an iris (35) of an eye (25), and a controller (44). The controller is configured to identify, in one or more images of at least part of the iris, an indication of fluid flow through the target site, and in response to identifying the indication, inhibit the laser from further irradiating the target site. Other embodiments are also described.

The invention relates to a device and a method for displaying the axis of astigmatism of an eye, in which an observation unit is used to observe the eye and, using a display unit, the orientation of the axis of astigmatism of the eye is displayed. A sensor unit generates sensor data which indicate a modification to the alignment of the observation unit relative to the eye. A calculation unit updates the displayed orientation of the axis of astigmatism with the aid of the sensor data, and issues it as the current orientation of the display unit.

Proposed are a laser feedback device for irradiation to an eyeball and a laser feedback method using the same, the laser feedback device comprising: a guide beam irradiation unit for irradiating a guide beam to an eyeball of a patient; a reflection unit positioned adjacent to the guide beam irradiation unit; a laser irradiation unit for irradiating a laser into the eyeball; an image acquisition unit that receives a reflection beam reflected from the eyeball and refracted through the reflection unit and acquires at least one retinal image of the retina of the eyeball; and an image mapping unit that maps at least one retinal image to construct a macular image which is a full image of the macula of the eyeball.

An image-guided tool and method for ophthalmic surgical procedures is provided. The AI model develops operating image features based on the surgical instruments used in the region of interest and the phase of the surgical procedure being performed. Augmented visual images are then constructed that include the real-time visual image and the image features with additional features determined by the system.

A method of accommodating patient movement in a laser surgery system with a scanner. The scanner is configured to be coupled with an eye interface device and operable to scan an electromagnetic radiation beam in at least two dimensions in an eye interfaced with the eye interface device. The scanner and the eye interface device move in conjunction with movement of the eye. A first support assembly supports the scanner so as to accommodate relative movement between the scanner and the first support assembly parallel so as to accommodate movement of the eye. A beam source generates the electromagnetic radiation beam. The electromagnetic radiation beam propagates from the beam source to the scanner along an optical path having an optical path length that varies in response to movement of the eye.

The disclosure provides a system that may: determine first multiple focal point distances associated with respective multiple positions of a plane orthogonal to a laser beam; determine second multiple focal point distances associated with the respective multiple positions via for each position of the multiple positions: determine multiple intensity values associated with respective multiple interim focal point distances, each interim focal point distance greater than each focal point distance of the first multiple focal point distances associated with the position; determine an interim focal point distance respectively associated with a maximum intensity value; and determine a focal point distance as the interim focal point distance; and determine a depth of at least one incision in an eye based at least on differences between each of the second multiple focal point distances and each respective one of the first multiple focal point distances.

A laser surgery system includes a light source, an eye interface device, a scanning assembly, a confocal detection assembly and preferably a confocal bypass assembly. The light source generates an electromagnetic beam. The scanning assembly scans a focal point of the electromagnetic beam to different locations within the eye. An optical path propagates the electromagnetic beam from a light source to the focal point, and also propagates a portion of the electromagnetic beam reflected from the focal point location back along at least a portion of the optical path. The optical path includes an optical element associated with a confocal detection assembly that diverts a portion of the reflected electromagnetic radiation to a sensor. The sensor generates an intensity signal indicative of intensity the electromagnetic beam reflected from the focal point location. The confocal bypass assembly reversibly diverts the electromagnetic beam along a diversion optical path around the optical element.