TABLE 1.

Clinical features and microbial identification of endophthalmitis caused by S. lugdunensis^a

Patient	Surgery procedure	Delay from surgery (days)	Initial visual acuity	Clinical examination results		Test results		Treatment	Final prognosis
				Anterior chamber	Posterior chamber	Cultures	Eubacterial PCR (% sequence identity with S. lugdunensis)
1	Cataract extraction, capsular lens rupture, anterior IOL	7	Hand motion	Conjunctival hyperemia, Tyndall ++, Hypopyon 1.5 mm	Loss of red reflex, vitreitis +++, retina not visualized	+ in AH	− in AH, + in vitreous from PPV (100) at day 5	3 intravitreal injections and PPV at day 5	VA 20/40 at 6-mo follow-up, epiretinal membrane
2	Cataract extraction Capsular lens rupture, vitreous loss IOL in the bag	6	Light perceptions	Conjunctival hyperemia, lid edema, Tyndall ++, Hypopyon 1 mm	Red reflex +, vitreitis +++, retina not visualized	+ in AH and vitreous (tap), − in vitreous from PPV at day 7	+ in AH and vitreous tap (100) (PPV, sample not done for PCR)	2 intravitreal injections and PPV at day 7 and day 17	Surgery for retinal detachment; retina reattached after silicone removal, hand motions at 18-mo follow-up
3	Cataract extraction, IOL in the bag	5	Light perceptions	Conjunctival hyperemia, corneal edema, Tyndall +++, Hypopyon 1.6 mm, cyclitic membrane	Loss of red reflex, vitreitis +++, retina not visualized	+ in vitreous (tap), − in vitreous from PPV at day 4	+ in vitreous tap (99), + in vitreous from PPV (99) at day 4	2 intravitreal injections and PPV at day 4	Surgery for retinal detachment, no light perception at 18-mo follow-up
4	Cataract extraction, IOL in the bag	12	20/100	Conjunctival hyperemia, Tyndall +++, cyclitic membrane	Red reflex +, vitreitis +++, retinal details not visualized	+ in vitreous (tap)	+ in vitreous tap (99)	2 intravitreal injections, no PPV	20/20 at 18-mo follow-up
5	Cataract extraction IOL in the bag	7	Hand motion	Conjunctival hyperemia, Tyndall +++, Hypopyon 2 mm, cyclitic membrane	Red reflex +, vitreitis +++, retinal details not visualized, choroidal detachment	+ in vitreous (tap), − in vitreous from PPV at day 5	+ in vitreous tap (100), − in vitreous from PPV at day 5	2 intravitreal injections and PPV at day 5	Surgery for retinal detachment; VA “count fingers” at 6-mo follow-up

^aAH, aqueous humor; IOL, intraocular lens; IOP, intraocular pressure; PPV, pars plana vitrectomy; VA, visual acuity; −, negative; +, present or positive; +++, dense. Tests of aqueous humor and vitreous samples from taps were always performed at admission (day 1), before the first intravitreal injection of antibiotics. The time period of sampling during pars plana vitrectomy is noted, using day 1 as admission.