Eye disorders

Achromatopsia – Types, Complications and Prevention

Definition Achromatopsia is an inherited retinal degeneration (IRD) characterised by partial or total colour blindness, in addition to other visual symptoms. The rod and cone photoreceptor cells are responsible for capturing the visual field. The rod cells perceive dim light (scotopic vision), are not sensitive to colour and are responsible …

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Exotropia – Symptoms, Management, and Prevention

What is Exotropia? Exotropia is a type of strabismus (eye misalignment), where one eye turns, or deviates, outward (away from the nose). The deviation may be constant or intermittent, and the deviating eye may always be one eye or may alternate between the two eyes. The deviation or eye turn …

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Anisometropia – Types, Symptoms, and Treatment

Definition of Anisometropia Anisometropia: The condition in which the two eyes have unequal refractive power. One eye may be myopic (nearsighted) and the other hyperopic (farsighted) or one eye may be markedly stronger than the other. Anisometropia is a serious concern in newborns and young children because it can lead to amblyopia (impaired …

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Optic neuritis- Causes, Diagnosis and Management

Definition Optic neuritis is the inflammation of the optic nerve (the second cranial nerve). The inflammation causes a fairly rapid loss of vision in the affected eye, a new blind spot (a scotoma, usually in or near the center of the visual field), pain in the eyeball (often occurring with …

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