Blurry vision

Iritis causes photophobia but will have an acute onset, usually with a red eye. These symptoms usually predominate so that iritis rarely presents with blurring of vision as a cardinal symptom. It is also usually unilateral.

Retinitis pigmentosa (RP) can occur in some types of renal failure, especially Alport’s syndrome, associated with deafness and a positive family history. The cardinal symptom in RP is poor night vision, but glare is not a typical description and symptoms are very gradually progressive from a relatively early age.

Glaucoma causes gradual loss of visual field and is rarely symptomatic in middle age, even with a positive family history. Glaucoma is not usually associated with renal failure or systemic medication.

Cataract is relatively common in renal transplant patients, as risk factors include renal failure and long-term systemic corticosteroid medication. The symptoms are typical, as vision becomes worse in bright light when the pupil constricts, confining the light path to the central part of the lens where it is thickest and the typical steroid-induced cataract most pronounced.

Antihypertensive medications cause many side effects, but blurring of vision is not usually one of them.