Table 4: Limitations of the treatments available for DR.

Treatment

Limitations

Vitrectomy

It becomes too late for vitrectomy in many cases and also the vision may decline even after the procedure

Laser surgery

Costly and uncomfortable for patient as a very bright light is flashed in the patient’s eye

Medical control

Not effective specially in case where the DR is already residing

Medicines

Painful and patient incompliance occur as injections and shots have to be taken