The purpose of this study is to assess the vision improvement achieved by patients with retinal disorders who received corneal treatments by a low vision aid device.

The purpose of this study is to assess the vision improvement achieved by patients with retinal disorders, including age-related macular degeneration and diabetic macular edema, who received corneal treatments by a low vision aid device. Patient records will be analyzed to determine measures of vision improvement including best spectacle-corrected distance visual acuity (CDVA). Analyses will include descriptive statistics and correlation between outcomes and baseline characteristics.

Inclusion Criteria:

1. - Female or male
2. - Any race
3. - Patient is at least 50 years old
4. - Patient has diagnosed retinal disorder that causes central vision loss in one or both eyes
5. - Treated eyes, at time of treatment, were pseudophakic or phakic with no significant vision loss due to cataract
6. - Patient had moderate to severe baseline vision impairment with CDVA of 20/63 or worse (decimal = 0.317 or less; logMAR greater than or equal to 0.50) in the treated eye(s)
7. - Patient CDVA records are available at baseline and at 1m or longer post-Tx times

Exclusion Criteria:

1 - Corneal disease or disorder in either eye 2 - Increased intraocular pressure (above 20mm Hg), glaucoma or history of glaucoma 3 - Presence or history of any other condition or finding that, in the opinion of the investigator, makes the patient unsuitable for retrospective observational study

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Patients with vision impairment due to retinal disorders involving central vision loss