The Role of OCT in Fundus Examination and Treatment
September 14 , 2022
In clinical practice, choroidal rupture caused by indirect external force is common. Blunt trauma can cause rapid deformation of the eyeball, leading to anterior and posterior compression and horizontal expansion of the eyeball. Collagen rich sclera and flexible retinal tissue rarely rupture, while bullet free RPE, Bruce membrane and choroidal capillaries are easy to rupture. The incidence of choroidal rupture accounts for 5%~10% of cases of blunt eye injury, 80% of which occurs in the temporal side of the optic disc or involves the fovea. Histopathology shows choroidal rupture accompanied by hemorrhage, fibrovascular tissue proliferation and RPE proliferation. The retina may have simple loss of outer tissue or continuous interruption of the whole layer of tissue, and the final rupture area will be healed by the reaction of fibroglia. Traumatic macular hole occurs in about 1.4% of patients after blunt eye injury, which may be the result of combined effects of trauma, cystic degeneration, vascular factors, vitreous traction and other factors, usually formed a few days after injury. Some cases can heal after 6 months, most of them are young people. There is no liquid accumulation at the hole edge, glial cells or RPE cells proliferate at the hole edge, and fill the gap. But many scholars believe that waiting for self-healing is not a good policy. Nowadays, OCT inspection is more convenient and fast. The changes of the rupture site before and after surgical treatment can be viewed more . In fact, not only choroidal rupture or macular hole, but also fundus diseases caused by some systemic diseases can be and analyzed through OCT examination, which not only brings clearer examination reports to patients, but also provides more accurate basis for doctors' clinical diagnosis. It can be said that it plays a "connecting role" examination and treatment.
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