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. 2020 Sep 8;12(9):576. doi: 10.3390/toxins12090576

Table 1.

Venom ophthalmia caused by venomous snakes.

Species Family Gland Venom Components Spitting Distance (Meter) Ocular Lesions Treatments Outcome Ref.
Naja atra Elapidae Duvernoy α-Neurotoxin PLA2
LAAO
CTXs
0.7–1 Conjunctivitis; corneal injury; Keratoconjunctivitis; Keratitis; Photophobia Water irrigations; topical antibiotics, corticosteroids, and vasoconstrictors; Analgesics Full recovery [3,9,10]
N. naja Elapidae Duvernoy α-Neurotoxin PLA2
LAAO
CTXs
0.2 conjunctival inflammation and swelling of the eyelids Water irrigations Full recovery [3]
N. nigricollis Elapidae Duvernoy α-Neurotoxin PLA2
LAAO
CTXs
0.8–2 Corneal injury; hypopyon; uveitis; conjunctival hyperemia Water irrigations; topical antibiotics, corticosteroids atropine; Analgesics Recovered with sequelae;
Few blind
[3,11,16,17,18]
N. pallida Elapidae Duvernoy α-Neurotoxin PLA2
LAAO
CTXs
0.5–1 Blepharitis, blepharospasm, conjunctivitis Water irrigations Full recovery [3]
N. siamensis Elapidae Duvernoy α-Neurotoxin PLA2
LAAO
CTXs
2 Conjunctivitis Water irrigations; Epinephrine Full recovery [3]
Hemachatus haemachatus Elapidae Duvernoy PLA2
LAAO
CTXs
1 Red eye Water irrigations Full recovery [3]
Crotalus atrox Viperidae Duvernoy PLA2
LAAO
SVMPs
n/a Photophobia Water irrigations; Topical antivenom, Analgesics Full recovery [12,13,14]
Rhabdophis tigrinus Colubridae Nuchal bufadienolides n/a Conjunctivitis, keratitis, corneal clouding Saline irrigations; topical antibiotics, corticosteroids Full recovery [24,25,26]
R.t. formosanus Colubridae Nuchal bufadienolides 1 Keratitis, corneal stromal edema and conjunctival congestion Water irrigation; topical corticosteroid, antihistamine and antibiotic Full recovery [27]

PLA2: Phospholipases A2; LAAO: L-amino acid oxidases; CTXs: Cardiotoxins; SVMPs: Snake venom metalloproteinases.