Ocular Inflammation
Ocular inflammation refers to the immune-mediated or infectious inflammation of any part of the eye. It encompasses a broad spectrum of conditions, ranging from mild…
Ocular Hypertension
Ocular hypertension refers to a condition in which the intraocular pressure (IOP) within the eye is consistently higher than the normal range, typically above 21…
Ocular Histoplasmosis
Ocular Histoplasmosis Syndrome (OHS), also known as Presumed Ocular Histoplasmosis Syndrome (POHS), is a serious eye condition that can lead to progressive vision loss. It…
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Obstructive Sleep Apnea Syndrome
Obstructive Sleep Apnea Syndrome (OSA) is a serious sleep-related breathing disorder characterized by repetitive episodes of upper airway obstruction during sleep. These episodes, often associated…
Obstructive Pulmonary Disease
Obstructive pulmonary disease is a chronic respiratory disorder characterized by airflow limitation due to airway obstruction. This limitation is typically progressive and not fully reversible,…
Obstructive Hydrocephalus
Obstructive hydrocephalus, also known as non-communicating hydrocephalus, is a neurological disorder characterized by a blockage in the normal flow of cerebrospinal fluid (CSF) within the…
Obsessive-Compulsive Disorder (OCD)
Obsessive-compulsive disorder (OCD) is a chronic psychiatric condition characterized by the presence of obsessions—unwanted, intrusive thoughts—and compulsions—repetitive behaviors aimed at reducing distress. These symptoms can…
Obesity Due to Proopiomelanocortin (POMC) Deficiency
Proopiomelanocortin (POMC) deficiency is a rare form of monogenic obesity characterized by early-onset severe obesity, adrenal insufficiency, and red hair pigmentation in most cases. The…
Obesity Due to Leptin Receptor (LEPR) Deficiency
Leptin receptor (LEPR) deficiency is a rare genetic disorder leading to severe, early-onset obesity caused by disruptions in the body's energy regulation system. As a…
Obesity Due to Bardet Biedl Syndrome
Bardet-Biedl Syndrome (BBS) is a rare autosomal recessive ciliopathy characterized by multisystemic manifestations, among which obesity is a hallmark. Unlike primary obesity, obesity associated with…