How to treat yellow spots on the eyelids

Many people are depressed by the growth of yellow spots on their eyelids. In fact, if you want to treat it, you can use laser therapy. In addition, there are photodynamic therapy and surgical treatment. Surgical treatment mainly refers to the removal of the neovascular membrane or macular rotation.

1. Laser treatment: Use the heat energy generated by the laser to destroy abnormal new blood vessels in the macular area. Laser photocoagulation is only used to seal existing neovascularization and cannot prevent the formation of new neovascularization. It is a symptomatic treatment. At the same time, a slight overdose of laser can cause choroidal neovascularization and damage nearby normal tissues, which will have a significant impact on visual function and must be treated with caution.

2. Transpupillary thermotherapy (TTT): This method uses a near-infrared laser with a wavelength of 810nm. The radiation rate on the retina is 7.5W/cm2. It has strong penetrating power and low absorption by the refractive interstitium, which slowly raises the temperature of the target tissue by about 10°C. However, it is lower than the local temperature produced by traditional laser photocoagulation, acts non-specifically on CNV, and causes less damage to surrounding normal tissues. After treatment, thrombosis occurs within the CNV, and partial or complete CNV closure occurs, which promotes the absorption of bleeding and exudation, while relatively preserving a certain visual function. Therefore, TTT is suitable for the treatment of various CNVs, including occult and typical CNVs.

3. Photodynamic therapy (PDT): A specific photosensitizer is injected into the patient's blood. When the drug circulates to the retina, a 689nm laser is used to excite the photosensitizer, thereby destroying abnormal new blood vessels without damaging normal retinal tissue. Therefore, it is used to treat CNV in age-related macular degeneration, especially subfoveal CNV. This therapy is currently a convenient, safe and effective method internationally.

4. Surgical treatment: such as resection of subretinal neovascular membrane, macular transposition surgery, retinal transplantation, etc.