Table 1
Summary of individual patient data
| Patient 1 | Patient 2 | Patient 3 | Patient 4 | |
|---|---|---|---|---|
| Sex | F | M | F | F |
| Age (years) | 73 | 71 | 69 | 69 |
| Preoperative visual acuity | 6/18 | 6/18 | HM | CF |
| Axial length (mm) | 25.52 | 33.43 | 22.00 | 23.25 |
| Peribulbar anaesthetic details: | ||||
| Administered by | Anaesthetist | Anaesthetist | Ophthalmologist | Anaesthetist |
| Number of injections | 2 | 2 | 4 | 2 |
| Needle type | Sharp | Sharp | Sharp | Sharp |
| Interval to diagnosis (days) | 1 | 2 | Immediate | Immediate |
| Clinical indicator(s) of inadvertent injury: | ||||
| Pain | N | N | N | Y |
| Decreased visual acuity | Y | Y | Y | Y |
| Hypotony | N | Y | N | N |
| Vitreous haemorrhage | Y | Y | Y | Y |
| Subretinal haemorrhage | Y | N | Y | Y |
| Choroidal haemorrhage | Y | N | Y | Y |
| Other | N | Retinal detachment | N | Retinal detachment, haemorrhagic chemosis |
| Interval to repair (days) | 4 | 42 | 10 | 8 |
| Operative findings: | ||||
| Category | 3 | 3 | 3 | 3 |
| Vitreous haemorrhage | Y | Y | Y | Y |
| Choroidal haemorrhage | Y | N | Y | Y |
| Optic atrophy | N | Y | N | Y |
| Retinal detachment | N | Y (macula off) | Y | Y (macula off) |
| Other | Subretinal needle track, retinotomies ×2 | Retinal break inferotemporal to macula | Superonasal retinal tear | Scleral lacerations ×2 |
| Surgical procedure | Drainage of choroidal haemorrhage, TPPV, SF6 | TPPV, argon endolaser to tear, silicone oil | Phaco and IOL, drainage of choroidal haemorrhage, TPPV, cryotherapy to tear, SF6 | Drainage of choroidal haemorrhage, repair of scleral lacerations, TPPV, silicone oil. Phaco and IOL at weeks |
| Outcome: | ||||
| Follow up (weeks) | 40 | 6 | 29 | 15 |
| Visual acuity | 6/9 | HM | 6/36 | HM |
| Retina attached? | Y | Y (optic atrophy) | Y (epiretinal membrane) | N |
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TPPV = trans pars plana vitrectomy; SF6 = sulphur hexafluoride gas; Phaco and IOL = phacoemulsification cataract extraction with insertion of intraocular lens.
