The 85-year-old grandma surnamed Chen lost her sight due to intraocular lens dislocation. Her vision recovered after surgery.

2026/10/06 13:33

Dr. Yang Qilan from the Ophthalmology Department of Children's Hospital said that whether it is a natural human lens or an artificial lens placed after cataract surgery, dislocation may occur. (Photo by reporter Zhang Xuanzhe)

[Reporter Zhang Xuanzhe/Taichung] reported that an 85-year-old grandma surnamed Chen from Taichung City had a black eye after falling at home. When she went to the clinic, she was found to have vitreous hemorrhage combined with hyphema. The clinic gave her medication and ordered her to observe for three days, but her grandma still couldn’t see clearly. , it was discovered that the intraocular lens installed after cataract surgery 5 years ago had dislocated anteriorly. He was referred to the Ophthalmology Department of Children's General Hospital. Doctor Yang Qilan performed surgical treatment of removing the intraocular lens and fixing the intraocular lens with scleral sutures, and his vision has now been restored.

Yang Qilan said that artificial lenses must be installed after cataract surgery, mainly to replace the originally removed cloudy natural lenses so that light can be refocused on the retina correctly to restore vision. Neither the natural human lens nor the artificial lens placed after cataract surgery is as strong as imagined. Judging from the clinical data of Children's General Hospital, about 20 to 30 patients need to undergo surgery related to lens dislocation a year. Common risk factors for lens dislocation include trauma, acute glaucoma, rigid intraocular lens, etc. However, there are also people whose lens dislocates spontaneously without any reason. Therefore, if a bag tension ring is installed during cataract surgery, there is a chance to reduce the occurrence of intraocular lens dislocation.

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An 85-year-old grandma has regained her vision after surgical treatment of removing the intraocular lens and fixing the intraocular lens with scleral sutures. (Provided by Children’s General Hospital)

If the lens dislocation is not serious and does not cause symptoms, it is generally recommended to observe it; if it is severe posterior dislocation, anterior dislocation, or causes complications such as glaucoma and uveitis, surgery is required.

Yang Qilan pointed out that lens dislocation can be divided into posterior dislocation and anterior dislocation according to direction. About 70% of clinical cases are posterior dislocation. In addition to blurring the vision, most posterior lens dislocations will not cause any other harm to the eyeball. If it is anterior dislocation, there is a high probability of causing serious damage to the cornea and optic nerve. At this time, the forwardly dislocated lens must be removed as soon as possible and the eyeball can be allowed to recover for a period of time before a new intraocular lens is fixed to restore vision.