Causes and risk factors
Aphakia occurs as a result of surgical removal or perforating ulcer. Aphakia can be a congenital condition. It can occur as a result of major eye surgery in childhood such as congenital cataract. Posttraumatic absorption of lens can occur. There can be traumatic extrusion of lens. Posterior dislocation of lens can also cause aphakia.
Clinical presentation
Patient complains of loss of accommodation. There is farsightedness (hypermetropia). Photophobia, eye pain, headache may be accompanying symptoms. Pupil is jet black in colour. There can be vibration of iris on movement of the eye (iridodonesis). Colour vision problems are also seen with objects having red or blue tinge due to failure to absorb the sunrays.
Investigation
Medical history by the patient and clinical examination by the ophthalmologist helps in diagnosis. Routine ophthalmic examination is done. Visual field testing is recommended. Measurement of visual acuity is done.
Treatment
Treatment involves use of glasses. Contact lenses to correct vision will also help in managing aphakia. Surgical treatment consists of implanting artificial lens. In addition to this, steroid eye drops, eye patch will contribute further to the treatment.
