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It appears that you are experiencing retinal vessel fluid leakage in the macular or perimacular area of the left eye. Considering your age, it is unlikely to be age-related macular degeneration. Rather, other retinal degeneration with vessel leakage is likely causing this problem. The fact that it is only in one eye suggest that it is unlikely related to a systemic condition. Chorioretinitis (inflammation involving the retina and choroid) can cause this condition, and conditions that can cause such chorioretinits include infectious process - toxoplasmosis, histoplasmosis
or toxocara. Other retinal infectious process to be considered include neuroretinis. If you have a history of trauma or injury to the left eye, this can cause this problem.In general, the treatment includes Lucentis
intravitral injections, photodynamic therapy, and steroid injections, in addition to close monitor with FA and macular OCT. In addition, I suggest that use over the counter eye multivitamins (such as I-caps or PreserVision multivitamins) shown to reduce the rate of progression of vision loss in age-related macular degeneration caused by moderate to large drusens
. While there is likely a difference in the underlying cause of your condition and age-related macular degeneration, there is likely a common involvement of VEGF substance causing the leakage and swelling - and consequently the blurred vision. The aim of the Lucentis and steroid injections is to reduce the VEGF production. The multivitamins likely help reduce the oxygen free radical burden in the body which indirectly promotes the production of VEGF. II would also suggest a consideration of longer term small dose of prednisone if there is chorioretinitis or retinochoroditis with any evidence of active infection.