Brief Answer:
details below!

Detailed Answer:
Hi,
Have read all your details.
I am sorry for his condition.
As per your query
In his right eye the central part of retina better termed as Macula is damaged,However the damage caused to his vision due to this can be detected by a tool called Amsler grid monitor.
An early diagnosis will result in early treatment, so it may help to limit or at least slow the vision loss he is experiencing.
Amsler grid test is a very easy test and can be done easily even by the patient at home and can follow up with his opthalmologist every three month.
Medication to be tried include-
Anti-VEGF medication-VEGF stands for vascular endothelial growth factor. It's one of the chemicals responsible for the growth of new blood vessels in the eye caused by wet AMD. Anti-VEGF medicines block this chemical, stopping it producing blood vessels and preventing MD getting worse.
Surgery-Photodynamic therapy- It involves having a light-sensitive medicine called verteporfin injected into a vein in your arm.
The verteporfin attaches itself to the abnormal blood vessels in your macula. A low-powered laser is then shone into your damaged eye over a circular area just larger than the affected area in your eye. This usually takes around one minute.Performed only by limited opthalmologist.
Laser photocoagulation
Laser photocoagulation can also be used to treat some cases of wet AMD. This type of surgery is only suitable if the abnormal blood vessels aren't close to the fovea, as performing surgery close to this part of the eye can cause permanent vision loss.
You can discuss all possibilities with your treating doctor.
For left eye as evident from reports has severe macular edema and degeneration,which can not be reverted hence prognosis(chances of saving vision) are very poor.
Thanks!

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