The Schematic Eye with Retinal Images is a training eye model that provides students with a controlled environment for developing fundamental retinoscopy and direct ophthalmoscopy skills. Retinal targets allow students to practice locating and viewing the fundus, while adjustable refractive errors provide experience focusing through different simulated refractive conditions.

Retinoscopy and direct ophthalmoscopy practice

The model supports practice in two complementary examination techniques. For retinoscopy training, students can work with different simulated refractive errors as they develop their examination skills. For direct ophthalmoscopy training, the retinal images provide a target for practicing instrument alignment, locating the fundus and bringing the retinal image into focus.

By practicing on a model, students can repeat these techniques in a controlled setting and become more familiar with instrument handling and focusing before examining patients.

Adjustable refractive errors and trial lens support

The back of the training eye adjusts from +4 to −6 to simulate different refractive errors. Plus settings simulate hypermetropia (hyperopia or farsightedness), while minus settings simulate myopia (nearsightedness). This adjustment allows students to practice with different refractive conditions using the same training model.

The front of the model holds up to three trial lenses, allowing the simulated refractive range to be extended. Adding plus-powered trial lenses introduces myopia, while minus-powered lenses introduce hypermetropia. A cylindrical trial lens can be used to simulate astigmatism.

An angle scale on the front indicates positions from 0° to 180° for trial lens orientation, supporting cylinder axis settings during astigmatism practice.