Answer: B-scan can be helpful especially in cases where there is a poor view perhaps due to cataract or vitreous hemorrhage and to confirm presence of shallow detachments. OCT macula can also be helpful to determine extent of macular involvement and would demonstrate separation of photoreceptor layers from the RPE.
Below is an example of B-scan findings in a patient with and superior and inferior retinal detachment.
Above Image Credit: © 2022 American Academy of Ophthalmology
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Posterior vitreous detachmement
Macula on rhegmatogenous retinal detachment
Macula off rhegmatogenous retinal detachment with macular sparing
Exudative retinal detachment
Macula off tractional retinal detachment with macular sparing
Macula on tractional retinal detachment with macular sparing
Acute retinal tear
Retinoschisis
What are treatment options? Click all that apply
Laser retinopexy
Pneumatic retinopexy
Pars plana vitrectomy
Scleral buckle
Observation
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Ophtho On Call Case 5 Index
Ophtho On Call Case 5: Introduction
Ophtho On Call Case 5: Additional History & Physical Exam