#asteno

• Lampshade — A device mounted on a light fixture designed to direct, diffuse, or filter the light from a lamp to protect the eyes from the bulb's direct glare. In medical ergonomics, occupational health, and ophthalmology, using an appropriate lampshade is essential to prevent accommodative asthenopia (eye strain), reduce screen reflections, and optimize visual comfort in treatment or office spaces.
• Asteno- — A scientific combining form (prefixoid) extracted from the Greek language (from 'asthenes'); it means weak, lacking strength, vigor, or resistance, directly related to asthenia. It is used in medicine, biology, or psychopathology to form neologisms describing states of weakness, functional deficiencies, or reductions in organic tone.
• Asthenobiosis — A form of latent life or a pathological or adaptive slowing down of a living organism's fundamental metabolic processes, characterized by a profound state of weakness, temporary inactivity, and reduced energy consumption; it occurs as a survival response to extremely harsh or unfavorable environmental conditions (such as drought, extreme cold, or lack of nutrients).
• Asthenocoria — A rare ophthalmological condition characterized by an extremely slow, sluggish, or delayed accommodation reaction of the pupil to light stimuli (affecting both constriction and dilation), associated with local muscular or nervous fatigue of the iris, without implying a complete paralysis of the pupillary reflex.
• Asthenophobia — A phobic disorder characterized by an intense, irrational, and obsessive fear of weakness, physical exhaustion, or falling into a state of asthenia; the affected individual experiences severe anxiety toward the idea of losing vital energy, muscular strength, or control over their own body due to fatigue.
• Asthenology — A theoretical branch or specialized medical study dealing with the detailed research, classification, and treatment of all forms of asthenia, organic weakness, and physical or mental exhaustion; it investigates the metabolic, endocrine, or neurological causes determining the collapse of energy barriers in the human body.
• Asthenomania — A rare mental disorder or obsessive preoccupation characterized by a person's deliberate simulation, exaggeration, or morbid focus on states of weakness, fatigue, and asthenia, often used as an unconscious or conscious mechanism to gain attention, sympathy, or social advantages.
• Asthenoneurotic — Belonging to or characterized by asthenoneurosis; a clinical condition combining the symptoms of profound asthenia (physical and muscular fatigue) with those of a neurosis (irritability, anxiety, emotional lability, and sleep disturbances); as a noun, it denotes a patient suffering from this neuropsychic disorder.
• Asthenopia — An ophthalmological condition manifested by rapid visual fatigue, accompanied by headaches, tearing, blurred vision, and a burning sensation in the eyes; it usually occurs following prolonged visual effort (reading, computer work) or due to improperly corrected refractive errors (hyperopia, astigmatism).
• Asthenosphere — A layer ofthe solid Earth located in the upper mantle, directly below the lithosphere (at a depth between approximately 100 and 410 kilometers); it is characterized by rocks in a plastic, viscous, and partially molten state due to high temperatures and pressures, allowing the slow movement of overriding tectonic plates through convection currents.
• Asthenospermia — A medical condition characterized by a pathological decrease in sperm motility within the semen, constituting a major cause of male infertility; the condition is diagnosed via a semen analysis when the percentage of spermatozoa with normal progressive motility drops below reference values set by the World Health Organization.