VII: Diseases of the eye and adnexa

H55-H59: Other disorders of eye and adnexa

The group of conditions classified as "Other disorders of eye and adnexa" encompasses a variety of eye-related issues, which are neither infections nor diseases typically related to aging. These disorders occur in structures of the eye and its surrounding parts, known as adnexa, which include the eyelids, tears system and eye muscles. Causes vary greatly, with some disorders resulting from injuries, others from genetic factors or systemic diseases. Common symptoms across these conditions can include blurry or reduced vision, eye redness, pain, and unusual eye movements or positions. As these conditions progress, they may either remain stable or worsen, potentially leading to extensive vision loss depending upon the exact disorder. Various body systems can be affected in these cases, especially the nervous and immune systems as they can directly influence the health of the eye and its adnexa.