Purpose: To reevaluate the residual accomodation after instillation of two different cycloplegic drugs; 1% cyclo- pentolate, 1% tropicamide and their association. Material and Method: We selected 46 patients aged bet- ween 15 and 25 years, with iris graded 4 and 5 according to the Seddon classification and without any type of eye disease. Those patients came spontaneously to the Depart- ment of Ophthalmology Outpatient Clinic of the Santa Casa-São Paulo, within the period of October 1997 to September 1988. The 46 patients were submitted to three complete ophthalmologic examinations. The potential of accommodation of each eye was tested as follows: 20 minutes after instillation of 1% tropicamide; 40 minutes after 1% cyclopentolate instiIlation and 30 minutes after 1% tropicamide plus 1% cyclopentolate, with an interval of 5 minutes between both drugs. Examination were performed with an interval of at least seven days between the tests. Results: There were no differences between the emmetropia, the hyperopia and the short myopia groups regarding all drugs (p > 0.005). 1% cyclopentolate and the association at the drugs caused statistically significant less residual accomodation, compared to 1% tropicamide in the hype- ropia and myopia groups. Conclusion: 1% cyclopentolate 1% and the association of the drugs are safe for the static refractometric examination in young patients with dark iris and without any type of eye disease, since they promote an average residual accomodation of 1.21 +/- 0.7 spherical diopters (SD) in all studied groups.
Accommodation residual; Cycloplegics; Cyclo- plegia
