It seems from the history that your husband had conjunctivitis to begin with which has progressed to involve the cornea
leading to keratoconjuncitvitis. Keratoconjunctivitis
is very common finding in viral and chlamydial conjunctivitis.
The disease requires treatment for 4-6 weeks and it usually runs a chronic course. However the disease can be effectively treated and usually no permanent sequelae occur with effective treatment. The treatment is mainly by antibiotic eye drops, antiinflammatory eye drops and sometimes steroid
Hence you require consultation by a ophthalmologist for eye examination and treating depending on the severity of the disease.