An artificial nasolacrimal duct is used for patients with lacrimal canalicular stenosis to maintain lacrimal duct patency.
Used in scleral buckling to repair a retinal detachment, it is sewn onto the sclera at the site of a retinal tear to reduce the vitreous body’s pulling force on the retina and promote the re-attachment of the retina.
Twenty or 30 years ago, cataract surgery was technically required to wait until the lens had matured and hardened. Now, thanks to advances in technology, it is easy to remove hardened lenses by emulsification or laser.
Xerophthalmia, as the name suggests, is a medical condition in which the eye feels dry. In fact, it is more than that.
The treatment of xerophthalmia is mainly to find out the cause of the disease and prescribe the right medicine according to the symptoms.
Timing for correction: Poor eyesight caused by abnormal refraction (possibly myopia with astigmatism). If the words are not clear on the blackboard and whiteboard in class, which will affect children's study, and they would squint at things, tilt their head or look sideways, and always like to move forward when watching TV, they need to consider wearing a pair of glasses.
Blue light enlarges the eye axis and equator (causing myopia). Green light, white light and red light do not affect or improve myopia.
"Doctor, I forbid children to watch TV and take them outdoors on holidays. Why is he/she myopic? "Myopia, is it real or pseudomyopia? Does he/she need to wear glasses? A barrage of questions are fired by anxious parents at the clinic.
The causes of diabetic retinopathy are linked to retinal hypoxia, vascular wall dysfunction, microvascular wall cell reduction, agglutination and proliferation of blood cells and platelets. Diabetic retinopathy can be divided into three categories:
There are three important factors that cause rhegmatogenous retinal detachment: first, retinal tear; second, tension to open the tear, and third, moisture infiltrated into the tear for retinal detachment.