Archive for December 2022

Charles Bonnet syndrome is the term that is used to describe visual perceptions without physical substrate in the setting of poor ocular health. Basically, the eye that does not function well sends incomplete/inaccurate data to the brain, and the brain “conjures up” images by trying to create sensible images out of that imperfect data. In…

People who complete long missions into Space can get swelling of their optic nerve in the eye. The optic nerve is the “cable” that connects the eye to the brain, so that the information received by the eye can be processed appropriately. In the December 2022 edition of JAMA Ophthalmology, Dr. Laura Pardon and colleagues…

What is Peters anomaly? This is a very fair question, as most people have never heard of this corneal disease of the eye. One of the main aspects of Peters anomaly is a central white spot in the very front part of the eye (the cornea). There are also adhesions between the colored part of…

In the December 2022 edition of the journal Cornea, Silvana Schonit and colleagues published an article showing that corneal guttata are transplanted in about 15% of penetrating keratoplasty grafts. What the heck does that mean? Penetrating keratoplasty grafts are full thickness cornea transplants. In an idealized world, cornea transplants are always perfect pristine tissue samples…