What Are the Different Types of Ocular Surface Disease?

The concept of ocular surface disease (OSD) refers to diseases that damage the normal structure and function of the corneal and conjunctival ocular surface. Because the ocular surface is a holistic concept, it is necessary to synthesize ocular surface diseases and tear diseases functionally, and summarize them as ocular surface & tear disease.

Ocular surface disease

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Keratoconjunctivitis sicca, also known as dry eye, is a common ocular surface disease, which refers to abnormal tear quality or quantity caused by any cause, or decreased tear film stability caused by abnormal kinetics, and A general term for a variety of diseases characterized by ocular discomfort and / or ocular surface tissue lesions. Dry eyes are classified into the following four types according to the components of tear deficiency: water sample deficiency, mucin deficiency, lipid deficiency, and tear dynamics (distribution) abnormalities.

The most common symptoms of dry eye disease are eye fatigue, foreign body sensation, dryness, and other symptoms such as burning sensation, eye bloating, eye pain, photophobia, and red eyes. If you have the above symptoms. Diagnosis: It is usually based on the following four aspects: (1) symptoms; (2) tear film instability; (3) damage to epithelial cells on the surface of the eye; (4) increased osmotic pressure of tear fluid, which can affect the majority of patients with dry eye Make a diagnosis.

Many dry eye patients may coexist with two factors: lack of water sample and excessive evaporation. Before starting treatment of dry eye, you should first determine which type of patient is the main in order to take targeted measures. In addition, dry eye is a chronic disease More long-term treatment is needed to help patients build confidence in adherence to treatment. Patients with tear film instability should first find the internal cause and treat it. Secondly, the abnormality of tear coating is also related to the anatomy and movement of the eyelid and whether the eye surface is smooth. Therefore, it should be treated accordingly. If it is due to dry eye caused by excessive evaporation of tears due to eyelid exposure, the surgical timing of eyelid reconstruction should be grasped according to the condition to perform eyelid reconstruction.