In general, when rhegmatogenous retinal detachment occurs, the liquefied vitreous will flow into the sub-neuroepithelium space via the retinal hole, and the intraocular pressure (IOP) usually goes down. However, the symptoms can be confused when rhegmatogenous retinal detachment (especially shallow detachment) is accompanied by ocular hypertension or glaucoma. It may bring difficulties to the diagnosis or even lead to treatment in totally wrong direction. Schwartz-Matsuo syndrome is an example of such diseases.
