A question still unsatisfactorily answered is whether way of thinking influences the intraocular force in patients acquiring primary open-angle glaucoma. Most of has become published on the subject is vague and speculative, lacking in sufficient controls, or failing to tell apart open-angle glaucoma by angle-closure glaucoma. We know that will tonometry in tight individuals often indicates over the initial measurements hook transitory elevation regarding this site that's apparently associated along with apprehension, probably merely exhibiting the patient's in-born self-protective tendency to close the truck tops and withdraw on the approaching tonometer, possibly also highlighting a transient level of blood force from fear. This reflex is usually ordinarily of only a few seconds' duration. Also we possess many legends regarding acute angle-closure glaucoma precipitated by or associated with emotional upset, possibly involving modifications in pupillary diameter or transient vascular variations.