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  Indian J Med Microbiol
 

Figure 5: Diagram demonstrating the optics of DDDO. A superior bright crescent is formed when the eye is fixated for distance and an inferior crescent is formed when the eye is fixated for the near

Figure 5: Diagram demonstrating the optics of DDDO. A superior bright crescent is formed when the eye is fixated for distance and an inferior crescent is formed when the eye is fixated for the near