Table 1.

Causes of neurotrophic keratitis

CONGENITAL	ACQUIRED
Congenital corneal hypoesthesia/anesthesia	Systemic
	Diabetes mellitus
Congenital CN palsy	Vitamin A deficiency
Riley–Day Syndrome	Vitamin B complex deficiency
Goldenhar syndrome	Leprosy
Mobius corneal hypesthesia	Multiple sclerosis
	Vasculitis
	Other nutritional deficiency
	Age
	Local
	Neurological
	Meningioma
	Acoustic neuroma
	Infections
	Herpes zoster
	Herpes simplex
	Toxic topical medications
	Topical anesthetics
	Preservatives
	Topical beta-blockers
	Chemical and Thermal burns
	Iatrogenic
	Orbital or facial trauma surgery
	Post TG neuralgia surgery
	Post LASIK
	Chronic CL wear

TG Trigeminal, LASIK Laser in situ Keratomileusis, CL Contact Lens