Xerophthalmia from hypovitaminosis A is specifically due to lack of the hormone-like vitamin A metabolite retinoic acid, since (along with certain growth-stunting effects) the condition can be reversed in vitamin A deficient rats by retinoic acid supplementation (however the retinal damage continues). Since retinoic acid cannot be reduced to retinal or retinol, these effects on the cornea must be specific to retinoic acid. This is in keeping with retinoic acids known requirement for good health in epithelial cells, such as those in the cornea. Cause
The condition is not congenital and develops over the course of a few months as the lacrimal glands fail to produce tears. Other conditions involved in the progression already stated include the appearance of Bitots spots, which are clumps of keratin debris that build up inside the conjunctiva and night blindness, which precedes corneal ulceration and total blindness. Classification
World Health Organization classified xerophthalmia into following stages:
XN-Night blindness
X1A-Conjunctival xerosis
X1B-Bitot spots
X2-Corneal xerosis
X3A-Corneal ulceration/keratomalacia, involving less than one-third of the cornea
X3B-Corneal ulceration/keratomalacia, involving more than one-third of the cornea
XS-Corneal scar due to xerophthalmia
XF-Xerophthalmic fundus

Prevention
Prophylaxis consists of periodic administration of Vitamin A supplements.
The symptoms that are present are not part of a normal grieving for the death of family member or other loved one.Adjustment disorders have the ability to be self-limiting. Within five years of when they are originally diagnosed, approximately 20–50% go on to be diagnosed with psychiatric disorders that are more serious. ICD-11 classification
International Statistical Classification of Diseases and Related Health Problems (ICD), assigns codes to classify diseases, symptoms, complaints, social behaviors, injuries, and such medical-related findings. ICD-11 classifies Adjustment disorder (6B43) under "Disorders specifically associated with stress". Treatment
Individuals with an adjustment disorder and depressive or anxiety symptoms may benefit from treatments usually used for depressive or anxiety disorders. The use of different therapies can be beneficial for any age group. There is also a list of medications that can be used to help people with adjustment disorder whose symptoms are too severe for therapy alone. If a person is considering taking medication, they should talk to their doctor. Specific treatment is based on factors of each individual separately.