TRAUMATIC CYCLOPLEGIA AND MYOPIC ANISOMETROPIA

The pathogenesis of myopia and the mechanism of atropine in preventing myopic progression have long been widely discussed. Recent studies wi th animals have pointed to the possible role of the muscarinic recepto r of the retina itself in regulating eye growth. This paper stresses t hat, for myopia in humans, the importance of accommodation still holds . Twenty-five recovered cases of previous traumatic hyphema, occurring under age 16, were collected, For four or more years, the patients we re examined for ocular refraction, axial length, intraocular pressure, gonioscopy acid accommodation time; the latter was measured with an a ccommodopolyrecorder. Data from injured eyes and fellow eyes were comp ared and analyzed. The results indicated that, in the injured eyes the refractive status was invariably less myopic than in the fellow eye, and was not related to intraocular pressure. In injured eyes the accom modation time was highly correlated with the extent of angle recess. A nd the difference of anisometropia was also related to the extent of a ngle recess. These observations showed that there was a significant co rrelation between the degree of myopic anisometropia and the impairmen t of accommodation.