What's the difference between entoptic and entotic?
Entoptic
Definition:
(a.) Relating to objects situated within the eye; esp., relating to the perception of objects in one's own eye.
Example Sentences:
(1) The results of this study of two microvascular preparations strongly suggest that in the human eye the blue field entoptic phenomenon is produced by leukocytes flowing within the macular retinal microvasculature.
(2) Retinal leukocyte velocity and density were estimated using blue-field entoptic imaging techniques in a controlled double-masked study to determine the relative effects of oxygen and carbon dioxide on perimacular hemodynamics in single eyes of ten normal human subjects.
(3) All subjects underwent subsequent blue field entoptic hemodynamic studies at each of four IOP values related to their VEP pressure tolerance curve--at baseline IOP, at IOP corresponding to the VEP amplitude peak, and at IOPs corresponding to trough points either side of this peak.
(4) The cellular source of the blue field entoptic phenomenon was investigated in two microvascular preparations using video-microscopy with lighting conditions similar to those under which the entoptic phenomenon is visualized within the human eye.
(5) The entoptic phenomenon by which one can observe leukocytes flowing in one's own parafoveal capillaries has been used to study the effect of changes in perfusion pressure on blood flow.
(6) Flow velocity of leukocytes in the perifoveal circulation was measured using the blue-field entoptic technique, and retinal artery and vein diameters were measured using a computerized digitizing system.
(7) Therefore the round, black formations are not entoptically perceivable erythrocytes of the choriocapillaries but can only originate in the circular network of the central choriocapillaris.
(8) Macular blood flow was measured using the blue field entoptic phenomenon, and retinal artery and vein diameters were measured using a computerized digitising system.
(9) For patients with dense or mature cataracts, macular integrity must be carefully evaluated with techniques such as ophthalmoscopy or posterior pole biomicroscopy, color perception, two-light discrimination ability, Maddox rod test, perception of entoptic phenomena, and electrophysiological testing.
(10) True chromatopsia and chromatopsia due to staining of optic media of the eyes were distinguished and an attempt to explain this entoptic phenomenon made.
(11) The Purkinje vascular entoptic test is a test of macular function which employs a light directed through the sclera illuminating the fundus.
(12) On two different occasions, separated by 3 or more days, 20 subjects adjusted Vm and N of computer-simulated leukocytes moving on a video screen to match those of their own entoptically perceived leukocytes before and 3 hr after a double-blind, randomized administration of 500 mg acetazolamide or placebo capsules.
(13) The mean of three blue field entoptic density and velocity measurements was determined before as well as during and 10 minutes after the immersion of one hand in ice water.
(14) Using an optimized technique for visualizing the retinal vasculature entoptically, the authors determined the location of the retinal point of fixation with respect to the foveal area vasculature in 26 eyes of 14 healthy subjects.
(15) Subjects adjusted the mean velocity (Vm) of computer-simulated leukocytes moving on a cathode ray tube screen to match that of their own entoptically perceived leukocytes before and 1 hr after a double-masked, randomized administration of 200 mg caffeine or placebo.
(16) Subjects adjusted the mean velocity of computer simulated leukocytes moving on a CRT screen to match that of their own entoptically perceived leukocytes before, during, and immediately after smoking a cigarette.
(17) One hundred one cataract patients were tested preoperatively for macular function using the Flying Corpuscle Viewer, a portable blue field entoptic device which utilizes the slit lamp as a light source.
(18) The authors attempted to predict postoperative visual acuity in patients undergoing cataract extraction by comparing the results obtained using two subjective methods: Lotmar's visometer test and the blue-field entoptic (BFE) test.
(19) The Maddox rod (with limitations), transilluminated Amsler grid, and various entoptic phenomena (Purkinje vascular phenomenon, foveal chagrin, Haidinger's brushes, blue field phenomenon) are available as qualitative subjective tests.
(20) Preoperative appreciation of the "Flying Leukocyte Corpuscles" (FLC) indicated a high probability of good postoperative visual acuity, while lack of appreciation of the blue field entoptic phenomenon preoperatively had no predictive value for postoperative visual acuity.