Abstract: A method for detecting a penetration depth of riboflavin in a cornea includes acquiring an optical section of RGB colors and converting it into an image in a CIEL*a*b* color space, extracting a luminance component L* in the CIEL*a*b* color space, performing binarization and Blob analysis to obtain a non-corneal-region-free image; based on the non-corneal-region-free image and the luminance component L* image, extracting boundary points of anterior and posterior corneal surfaces and performing curve fitting, so as to obtain anterior and posterior corneal surface curves; performing image fusion on the anterior and posterior corneal surface curves into the CIEL*a*b* color space to obtain a cornea-only CIEL*a*b* color image; in the cornea-only CIEL*a*b* color image, locating a riboflavin-penetrating region and partitioning the riboflavin-penetrating region into riboflavin-penetrating sites, and performing curve fitting and noise reduction on the riboflavin-penetrating sites to obtain riboflavin the penetration de

Abstract: A programmable graphic projection light source system for ophthalmology includes a light source, a flexible screen, a reflective coating, and a light-shielding plate that is located between the light source and a pupil. The light source irradiates light away from the light-shielding plate. The flexible screen is located opposite the light-shieling plate crossing the light source. The reflective coating is located opposite the light source crossing the flexible screen. After the light is reflected by a central, spherical face portion of the reflective coating, a part of the light transferring a pattern from the flexible screen is blocked by the light-shielding plate, and another part of the light irradiates orthographically onto a periphery of the pupil. After the light is reflected by a plane portion of the reflective coating, a part of the light transferring the pattern irradiates obliquely onto the pupil.

Abstract: A method for detecting a penetration depth of riboflavin in a cornea includes acquiring an optical section of RGB colors and converting it into an image in a CIEL*a*b* color space, extracting a luminance component L* in the CIEL*a*b* color space, performing binarization and Blob analysis to obtain a non-corneal-region-free image; based on the non-corneal-region-free image and the luminance component L* image, extracting boundary points of anterior and posterior corneal surfaces and performing curve fitting, so as to obtain anterior and posterior corneal surface curves; performing image fusion on the anterior and posterior corneal surface curves into the CIEL*a*b* color space to obtain a cornea-only CIEL*a*b* color image; in the cornea-only CIEL*a*b* color image, locating a riboflavin-penetrating region and partitioning the riboflavin-penetrating region into riboflavin-penetrating sites, and performing curve fitting and noise reduction on the riboflavin-penetrating sites to obtain riboflavin the penetration de