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In studies that used standardized definitions of convergence insufficiency, investigators have reported a prevalence of 4.2–6% in school and clinic settings. The standard definition of convergence insufficiency is exophoria greater at near than at distance, a receded near point of convergence, and reduced convergence amplitudes at near.
Accommodative insufficiency (AI) involves the inability of the eye to focus properly on an object. Accommodation is the adjustment of the curvature of the lens to focus on objects near and far. In this condition, amplitude of accommodation of a person is lesser compared to physiological limits for his age. [1]
0.3–0.9% (general population, US), ~7% of asthmatics [3] Aspirin-exacerbated respiratory disease ( AERD ), also called NSAID-exacerbated respiratory disease ( N-ERD) or historically aspirin-induced asthma and Samter's Triad, is a long-term disease defined by three simultaneous symptoms: asthma, chronic rhinosinusitis with nasal polyps, and ...
Acute severe asthma. Silent chest, worsening symptoms despite use of medication. [1] Acute severe asthma, also known as status asthmaticus, is an acute exacerbation of asthma that does not respond to standard treatments of bronchodilators (inhalers) and corticosteroids. [2] Asthma is caused by multiple genes, some having protective effect, with ...
Bronchial hyperresponsiveness is a hallmark of asthma but also occurs frequently in people with chronic obstructive pulmonary disease (COPD). In the Lung Health Study, bronchial hyperresponsiveness was present in approximately two-thirds of patients with non-severe COPD, and this predicted lung function decline independently of other factors.
An acute exacerbation of chronic obstructive pulmonary disease, or acute exacerbations of chronic bronchitis ( AECB ), is a sudden worsening of chronic obstructive pulmonary disease (COPD) symptoms including shortness of breath, quantity and color of phlegm that typically lasts for several days. It may be triggered by an infection with bacteria ...
Brittle asthma is a type of asthma distinguishable from other forms by recurrent, severe attacks. [1] [2] [3] There are two subtypes divided by symptoms: Type 1 and Type 2, [4] depending on the stability of the patient's maximum speed of expiration, or peak expiratory flow rate (PEFR). Type 1 is characterized by a maintained wide PEF ...
The Affordable Care Act defines 10 essential health benefits that must be covered, including pregnancy, maternity and newborn care. However, assisted reproductive care is excluded.