Accommodative insufficiency (AI) is a non-strabismic binocular vision anomaly that is characterized by an inability to focus or sustain focus for near vision. 1. AI is a sensory-motor anomaly, clinically manifesting as a reduced amplitude of accommodation compared to age-matched norms.
Causes & risk factors Visual demand increasing. Blurring unable to focus may occur and be related to prolonged visually demanding near centered tasks, without proper ergonomics (etc. lighting posture and taking breaks 20/20/20 rule).
The symptoms of accommodative insufficiency are known to include blurred vision, fatigue, headaches, motion sickness, double vision, and lack of concentration. Accommodative insufficiency is most commonly detected in school-aged children.
Paresis of accommodation, bilateral 523 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2022 edition of ICD-10-CM H52. 523 became effective on October 1, 2021. This is the American ICD-10-CM version of H52.
The five types of accommodative dysfunction according to the AOA's clinical practice guidelines are:Accommodative Insufficiency.Ill-sustained accommodation.Accommodative infacility.Paralysis of accommodation.Spasm of accommodation.
Scheiman et al in a study that included 2,023 pediatric patients found 19.7% to suffer from a binocular or accommodative dysfunction. This was broken down further into convergence excess (7.1%), convergence insufficiency (4.6%), accommodative insufficiency (2%) and accommodative excess (1.8%).
Convergence insufficiency (CI) is defined by the inability to accurately converge, or sustain accurate convergence, at near. Accommodative insufficiency (AI) is demonstrated by an insufficient amplitude of accommodation relative to age-based expectations.
The treatment for accommodative insufficiency in a primary-care practice involves: Correction of the near refractive error. To determine the appropriate near correction for the patient, consider the negative relative accommodation (NRA) and the positive relative accommodation (PRA) findings.
Accommodative insufficiency is different from premature presbyopia. In young people, it's usually the muscles, or the nerves leading to the muscles, that are the problem — not the stiffness of the lenses themselves. A number of treatments are available for this condition.
Deficiency of accommodation may result in fatigue with near work, diplopia, headache and decreased concentration [1]. Although accommodation insufficiency can occur when conjugate movement is normal with decreased contraction of both medial rectus muscles, most causes are still unknown.
Some recognized causes that may affect accommodation include head trauma,3 encephalitis and meningitis,4 midbrain disease,5 oculomotor nerve palsy, tonic pupil,6,7 pharmacological and toxic agents,8 ocular and orbital trauma,9 uveitis,10 cataract,11,12 lens subluxation, laser or cold applications to the retina or ...
Accommodative Excess refers to the tendency to focus closer in than the page being read, ie the individual will focus as if the book is closer than it really is.
The treatment for accommodative insufficiency in a primary-care practice involves: Correction of the near refractive error. To determine the appropriate near correction for the patient, consider the negative relative accommodation (NRA) and the positive relative accommodation (PRA) findings.
The accommodation reflex Accommodation and convergence of the eyes is mediated by increased tone of the medial rectus muscle and pupil constriction (contraction of the pupillae constrictor muscle), which occur together when a person views a close object.
Keeping both eyes open, start with the print at about 35cm from your nose and slowly bring it closer to you until it becomes too blurry to read. Now look away into the distance and relax your eyes for 3 seconds. Move the page back to 35cm and begin again. Repeat this procedure 40 times each day.
The most commonly prescribed treatments for accommodative dysfunction are a plus lens addition at near or vision therapy/orthoptics.
To code a diagnosis of this type, you must use one of the three child codes of H52.5 that describes the diagnosis 'disorders of accommodation' in more detail. H52.5 Disorders of accommodation. NON-BILLABLE.
Use a child code to capture more detail. ICD Code H52.5 is a non-billable code.
For instance, the American Optometric Association (AOA), in its clinical practice guidelines, identifies at least five types of accommodative dysfunction, whereas the ICD-10 recognizes only three for coding. Thus, the primary care optometrist should be familiar with both, for proper communication with insurance companies and with patients.
More technically, it is when the amplitude of accommodation (the maximum amount the patient can exert) falls below the expected age. This is separate from the normal reduction in accommodation due to presbyopia, and it is the most common type of accommodative disorder.
However, it is best to think of accommodative excess as a milder form of accommodative spasm. For instance, accommodative spasm is often associated with a triad of over-accommodation, over-convergence, and extreme miosis (“spasm of the near reflex”).
Spasm of accommodation is characterized as difficulty in relaxing focus. More technically, the accommodative response is in excess of the accommodative stimulus. This condition may cause blurred vision at near (worse at the end of the day), blurred vision at far (pseudomyopia), headaches, eyestrain, and sensitivity to light.
The accommodative system fails to respond to any stimulus. Although it is a rare condition, it is important to remember that it is often associated with organic causes, such as infection, trauma, poisoning, toxicity, or diabetes.
However, because of its association with organic disease, I like to treat it as a separate condition.
As we will see, because accommodative insufficiency, ill-sustained accommodation, and accommodative infacility all involve difficulty with stimulating accommodation (but do not show a total paralysis), they best fall under the general category of “paresis of accommodation.” The final two disorders — paralysis of accommodation and spasm of accommodation — are more straightforward in their coding, which would be “internal ophthalmoplegia” and “spasm of accommodation,” respectively.