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The Hruby lens is used for examination of the

  1. Anterior chamber

  2. Posterior chamber

  3. Vitreous body

  4. Retina and macula

The correct answer is: Retina and macula

The Hruby lens is a contact lens used in ophthalmology to examine the retina and macula. It provides a wide-field, high-resolution view of the central retina and is particularly useful in assessing the macula for conditions such as age-related macular degeneration, diabetic retinopathy, and macular holes. This lens allows for a detailed examination of the back of the eye, making it the correct choice in this scenario. Option A, the anterior chamber, is often evaluated using a slit lamp and a gonioscopy lens. Option B, the posterior chamber, can be examined using various techniques such as ultrasound or OCT imaging. Option C, the vitreous body, is typically assessed with techniques like dilation and indirect ophthalmoscopy.