Eye plastic surgery evaluation method based on eyelid curvature graph

Abstract

The invention discloses an eye plastic surgery evaluation method based on an eyelid curvature graph, the method is realized through a 3D camera, an image analysis unit and an algorithm unit, the 3D camera is used for collecting front surface images of upper and lower eyelids of a left eye and a right eye; the image analysis unit is used for identifying eyebrow and upper and lower eyelid boundaries; the algorithm unit is used for calculating data obtained by the 3D camera and the image analysis unit to obtain an eyelid curvature graph, and the eye plastic surgery is evaluated through the eyelid curvature graph.

Description

technical field [0001] The invention belongs to the field of eye plastic surgery evaluation medical instruments, in particular to an eye plastic surgery evaluation method based on an eyelid curvature map. Background technique [0002] Eyelid surgery includes cosmetic surgery on the upper and lower eyelids, eyebrows, etc. Clinically seen in patients of all ages, such as congenital ptosis, strabismus, small palpebral fissure, eyelid defect and various congenital deformities in children, elective surgery, eye wrinkle surgery, and upturned eye surgery are required depending on the condition. , eye bag surgery. like figure 1 As shown, the prior art preparations for ophthalmic plastic surgery are as follows: [0003] ① Eye examination (skin around the eyes, forehead and eyebrows); [0004] ② Eye examination (upper eyelid, lower eyelid, pupil, extraocular muscle, eyeball, tear film, visual inspection, intraocular pressure measurement); [0005] ③ Shooting records (equipment an...

AI Technical Summary

Problems solved by technology

[0008] 1. Pre-operative evaluation: shooting upright, close-up, close-up includes 3 states of eyes open, eyes closed, and eyes up; left and right oblique positions (full face and close-up), although due to the addition of photos of body posture and eyelid opening and closing And more information was obtained, but this kind of preoperative examination and evaluation is only the preservation of photo image information, without quantitative analysis;

[0009] 2. Because the shooting is too cumbersome, the clinical practicability is poor;

[0010] 3. Lack of dynamic information of eye blinking;

[0011] 4. The eye information obtained by it is single and only used for human eye recognition;

[0012] 5. Postoperative effect: the surgical effect cannot be quantified, and the success or failure of the operation cannot be objectively evaluated;

[0013] 6. None of the predecessors proposed a good pre- and post-operative evaluation system for ophthalmic plastic surgery, or reflected incomplete information, or collected useless information;

[0014] 7. The traditional simple photography method can only observe the appearance statically or under mild dynamic conditions, which is not enough to fully reflect the eye information and fully reflect the improvement of eye function;

[0015] 8. Changes in eyelid skin curvature and skin deformation due to changes in muscle biomechanics cannot be calculated and measured;

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