Central Serous Retinopathy
Central serous retinopathy (CSR) refers to a condition where fluid collects within the retina. It can lead to blurred central vision if the retinal fluid collects within the macula. Most patients have one eye affected but rarely both eyes can be involved. It typically affects younger male patients. The cause is often unknown but can be associated with the use of steroid medication. There may be recurrent episodes in some patients.
A thorough ophthalmological examination is carried out including vision tests, intraocular pressure measurements and an ocular fundus examination. A full fundus examination requires eye drops to dilate the pupil, which can temporarily blur near vision for a few hours.
Special imaging techniques such as Optical Coherence Tomography (OCT), colour fundus photography and fundus fluorescein angiography may be used to assess the location and degree of swelling within the macula.
The condition often resolves spontaneously without treatment but can take several weeks in certain cases to return to normal.
In cases where the fluid persists, laser treatment can be applied to the macula region to ‘switch off’ the leakage areas and improve vision. Newer anti-VEGF medicines delivered to the vitreous by injection can also be used to reduce persistent macular swelling and improve vision.