Optical coherence tomography for precise localization of inapparent retained foreign body in ocular coats.
OBJECTIVE
To report the use of optical coherence tomography (OCT) for precise localization of inapparent, retained foreign body in ocular coats.


METHODS
A 30-year-old man presented with diminution of vision in left eye of 1 year duration. Visual acuity was 20/400. Ocular examination revealed a large macular hole. An impacted foreign body in the ocular coats was suspected and picked up with ultrasound B scan although orbital computed tomography scan failed to detect any foreign body. OCT helped in precise localization of intraocular foreign body, enabling its removal through the macular hole following vitrectomy.


RESULTS
At 6 weeks follow-up, macular hole was closed and visual acuity improved to 20/100, N36. Repeat OCT did not reveal any foreign body.


CONCLUSIONS
OCT is a useful adjunct for precise localization of retained, inapparent intraocular foreign body in the ocular coats.
From Shri Bhagwan Mahavir Vitreoretinal Services, Sankara Nethralaya, Chennai, India.
Pukhraj
P
Rishi
Tarun
T
Sharma
Ekta
E
Rishi
Anshu
A
Arora