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A patient in front of a tonometer Intraocular pressure ( IOP ) is the fluid pressure inside the eye. Tonometry is the method eye care professionals use to determine this. IOP is an important aspect in the evaluation of patients at risk of glaucoma. [1] Most tonometers are calibrated to measure pressure in millimeters of mercury (mmHg). Contents 1 Physiology 2 Measurement 3 Classification 4 Influencing factors 4.1 Daily variation 4.2 Fitness and exercise 4.3 Musical instruments 4.4 Drugs 5 Significance 6 References 7 External links Physiology Intraocular pressure is mainly determined by the coupling of the production of aqueous humor and the drainage of aqueous humor mainly through the trabecular meshwork located in the anterior chamber angle. The reason for this is because the vitreous humour in the posterior segment has a relatively fixed volume and thus does not affect intraocular pressure regulation. An importan...

CB 1 and CB 2 structures. cannabinoid receptor 1 (brain) NMR solution structure of a peptide mimetic of the fourth cytoplasmic loop of the CB 1 cannabinoid receptor based on the PDB: 2b0y ​ coordinates. Identifiers Symbol CNR1 Alt. symbols CNR Entrez 1268 HUGO 2159 OMIM 114610 Orthologs 7273 RefSeq NM_033181 UniProt P21554 Other data Locus Chr. 6 q14-q15 cannabinoid receptor 2 (macrophage) Identifiers Symbol CNR2 Entrez 1269 HUGO 2160 OMIM 605051 Orthologs 1389 RefSeq NM_001841 UniProt P34972 Other data Locus Chr. 1 p Part of a series on Cannabis Arts Culture 420 Magu (deity) Names Religion Judaism Latter-day Saints Sikhism Stoner film Stoner rock Terms Chemistry Cannabinoid receptors Cannabinoid receptor type 1 Cannabinoid receptor type 2 Cannabinoids 2-AG 2-AGE, Noladin ether AEA CBC CBL CBD CBDV CBG CBN CBV NADA THC THCV Virodhami...