Table 2.

ASOCT characteristics and management of patients

	Case 1	Case 2	Case 3	Case 4	Case 5	Case 6	Case 7	Case 8	Case 9	Case 10	Case 11
Type of foreign body	Glass (AC)	Metal	Stone chip	Glass (Intrastromal)	Silicon band	Gun pellets (metal)	Caterpillar hair	Caterpillar hair	Firecracker debris	Plastic sheet piece	Human hair eyelash (AC+corneal)
ASOCT findings	AC FB with well-defined hyper-reflective borders and hypo-reflective left, anterior border of FB resting on DM with no intervening space, no posterior shadowing, and intact overlying cornea. [Fig. 1d]	Hyper-reflective triangular anterior border with total posterior shadowing, posterior edge protruding in AC, curling of DM at the site of AC penetration, hyper-reflective anterior border of protruding part in AC. [Fig. 2c]	A triangular FB with hyper-reflective anterior apex, well-defined hyper-reflective sides, and complete central shadowing, Curling of DM (arrow in Fig. 2d) at the site of DM breach. [Fig. 2d]	Intrastromal FB with an area of hypo-reflectivity surrounded by hyper-reflective, well-delineated borders with the isoechoic left, no posterior shadowing, and no breach in the endothelium. [Fig. 1e]	Deep intrastromal FB at corneoscleral limbus on the nasal side with well-delineated hyper-reflective borders and internal area of isoechoic reflectivity with complete penetration of rays. Epithelium and Descemet’s layer were intact. [Fig. 3d]	ASOCT of deep corneal FBs showed hyper-reflective anterior margins with total posterior shadowing, hyper-reflective oblique border in the AC with overhanging tissue, surrounding tissue hyper-reflectivity due to associated tissue edema, scarring and damage due to heat associated with pellets, curling of the DM at the site of AC entry. [Fig. 2e]	Three hyper-reflective fine linear structures corresponding to setae at different corneal depths with no posterior shadowing as follows (1) 144 microns at 3 o’clock (2) 144 microns a 5 o’clock (3) 567 microns at 6 o’clock resting on DM but not penetrating AC.	(1) First visit- single hyper-reflective fine linear structure corresponding to setae at 3 o’clock, anchored to DM, temporal 2/3 in the stroma, and nasal 1/3 protruding in the AC. [Fig. 4c] (2) Follow-up ASOCT showed migration of setae into AC with a small segment anchored to the cornea. [Fig. 4d]	Multiple hyper-reflective clump echoes at different depths in the cornea from sub-epithelial to a mid-stromal level corresponding to intrastromal powdery debris with partial posterior shadowing. [Fig. 3c]	Hyper-reflective horizontal structure, sub-epithelial, corresponding to the plastic sheet, with no posterior shadowing.	Multiple hyper-reflective echoes due to stromal scar and deep stromal impacted hair with a well-defined linear hyper-reflective structure in AC corresponding to the hair shaft. A hypo-echoic area suggestive of a clear space between the DM and hair shaft is seen. Curling of the DM at the site of the DM breach. [Fig. 4e]
Approach to FB removal	Internal	Combined	Combined	External	Not removed as inert. Patient is under close observation for further stromal or AC migration of the band	Combined	Not removed and observed for setae migration and intraocular inflammation	Not removed as deep and observed for setae migration and intraocular inflammation	Not removed as inert	External under the slit lamp	Internal
Additional measures	Nil	Three interrupted 10-0 nylon sutures as it was penetrating the wound	Two interrupted 10-0 nylon sutures	Cyno-acrylate glue+bandage contact lens	Nil	Cyno-acrylate glue+bandage contact lens	Upper tarsal conjunctival setae were removed under the slit lamp under topical anesthesia	Upper tarsal conjunctival setae were removed using a slit lamp under topical anesthesia	Nil	Nil	Nil

FB: foreign body, DM: Descemet’s membrane, AC: anterior chamber