(continue ACCOMMODATION ANOMALIES)
Spasm of accommodation refers to exertion of abnormally excessive accommodation.
Causes
1. Drug induced spasm of accommodation is known to occur after use of strong miotics such as echothiophate and DFP.
2. Spontaneous spasm of accommodation is occasionally found in children who attempt to compensate for a refractive anomaly that impairs their vision. It usually occurs when the eyes are used for excessive near work in unfavourable circumstances such as bad illumination bad reading position, lowered vitality, state of neurosis, mental stress or anxiety.
Spasm of accommodation refers to exertion of abnormally excessive accommodation.
Causes
1. Drug induced spasm of accommodation is known to occur after use of strong miotics such as echothiophate and DFP.
2. Spontaneous spasm of accommodation is occasionally found in children who attempt to compensate for a refractive anomaly that impairs their vision. It usually occurs when the eyes are used for excessive near work in unfavourable circumstances such as bad illumination bad reading position, lowered vitality, state of neurosis, mental stress or anxiety.
Clinical features
1. Defective vision due to induced myopia.
2. Asthenopic symptoms are more marked than the visual symptoms.
Diagnosis
It is made with refraction under atropine.
Treatment
1. Relaxation of ciliary muscle by atropine for a few weeks and prohibition of near work allow prompt recovery from spasm of accommodation.
2. Correction of associated causative factors prevent recurrence.
3. Assurance and if necessary psychotherapy.
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